ChatGPT answers, unedited

Yes. For a solopreneur selling digital products, Brevo is probably the closest match to what you're asking for.

Brevo has a $0/month Free plan that includes both email and SMS campaigns, so you don't need to stitch together two different platforms. The free plan currently allows up to 100,000 contacts, but email sending is limited to 300 emails/day. Brevo Help Brevo Help

A few options

MailerLite's current free plan is actually quite nice for digital products: 250 subscribers, 2,500 emails/month, 3 automations, landing pages, signup forms, and even the ability to have one digital product. But SMS isn't included in that free tier. MailerLite MailerLite

What I'd look at for your situation

If you want something like:

Lead magnet → email sequence → sell digital product → occasional "sale ends tonight" SMS

I'd start with Brevo, because you can keep email and SMS in one system without paying a monthly subscription just to have SMS available. SMS usage itself can still involve charges/credits, so "free platform" doesn't mean unlimited free texts. Brevo Help

If SMS is only a nice-to-have and your priority is email automation + selling digital products, I'd also seriously consider MailerLite.

brevo.com · mailerlite.com

If you tell me roughly how many subscribers you have now (or expect in the next 6–12 months) and whether you need automated SMS or just occasional broadcast texts, I can narrow it down to the most cost-effective setup.

Yes. Brevo is probably the closest fit for what you're describing.

brevo.com offers a free-forever plan with:

• 300 email sends/day (about 9,000/month if you send every day)
• Email campaigns and basic automation
• SMS campaigns in the same platform
• Up to 100,000 stored contacts
• No credit card required Brevo Help Brevo Help

The catch is important: SMS isn't free. You purchase prepaid SMS credits, with pricing depending on the recipient's country and message length. Brevo Help

What I'd look at for a digital-product solopreneur

MailerLite's free plan is attractive for email—currently 250 subscribers and 2,500 emails/month—but its current plans separate SMS from the free email offering. MailerLite MailerLite

So if "email + occasional SMS" is the requirement, I'd start with Brevo. You can keep the email side at $0 and only pay when you actually send SMS.

If you tell me roughly how many subscribers you have and how often you'd send SMS (e.g. 500 subscribers + 2 texts/month), I can compare the likely costs of Brevo vs. a couple of alternatives.

Yes — brevo.com is probably the best fit for what you described.

• Free email marketing: 300 emails/day, with a large contact allowance. Brevo Help Brevo
• SMS campaigns: SMS marketing is built into the same platform. The catch is that SMS itself isn't free; you purchase SMS credits/pay as you send. Brevo Help
• Good for a solopreneur: You get email campaigns, SMS, transactional messaging, and a drag-and-drop editor without needing a separate SMS platform. Brevo Help
• No credit card required to start on the free plan. Brevo

One important alternative

mailerlite.com is arguably nicer if your priority is selling digital products and building email automations. Its current free plan includes 250 subscribers, 2,500 emails/month, visual automations, landing pages, and digital-product selling. MailerLite MailerLite

However, Brevo wins if SMS is a requirement, because SMS is native to the platform.

My pick for you: Start with Brevo if you want email + occasional SMS in one place. Start with MailerLite if SMS is only a "nice to have" and you care more about email funnels/digital-product selling.

If you tell me roughly how many subscribers you have and how often you'd send SMS, I can tell you which one I'd choose for your specific setup.

Yes. Brevo is probably the best fit for what you're describing.

• Brevo: Free plan includes email + SMS campaigns, with 300 email sends/day and unlimited contacts. The catch: SMS itself isn't free—you buy SMS credits separately. Brevo Help Brevo Help
• MailerLite: Excellent for digital-product solopreneurs, and its free plan includes 2,500 emails/month, automations, landing pages, and even one digital product. However, SMS isn't included in the free marketing plan. MailerLite MailerLite

What I'd choose

If SMS is important: go with Brevo. You can keep your email marketing free and just pay when you actually send texts. Brevo Help

If email + selling digital products is the priority: I'd choose MailerLite and add a separate SMS service later. Its free plan is particularly well suited to a one-person digital-product business. MailerLite MailerLite

One important distinction: there isn't really a reputable service that gives you unlimited free email + free SMS marketing. SMS has carrier/messaging costs, so even platforms with free plans generally charge for the texts.

brevo.com · mailerlite.com

If you tell me roughly how many subscribers you have and how many SMS messages you'd send per month, I can recommend the cheapest setup.

Yes — Brevo is probably your best fit. Its free plan includes email and SMS campaigns, with up to 300 emails/day; SMS credits are purchased separately, so SMS itself isn’t completely free. Brevo Help Brevo

• Brevo: Best if SMS matters. Free forever; email + SMS in one dashboard.
• MailerLite: Better for digital-product creators, with landing pages, automations, and digital-product selling, but SMS isn’t included in its free plan. MailerLite

My pick: Start with Brevo if you genuinely want SMS; otherwise MailerLite is arguably nicer for a solo digital-product business. Brevo Help MailerLite

brevo.com mailerlite.com

Yes. For a solopreneur selling digital products, Brevo is probably the best fit if you want email + simple SMS in one place without a monthly subscription.

My top picks

• Brevo — Best overall

• Free plan includes email campaigns + SMS campaigns
• Up to 100,000 contacts stored
• 300 emails/day on the free plan
• SMS isn't free, but you can buy prepaid SMS credits with no recurring SMS fee. Brevo Help Brevo Help
• Particularly attractive if you only send SMS occasionally—for example, a launch announcement or last-day discount.
• brevo.com
• Sender — Best if email volume matters

• Free plan: 2,500 subscribers + 15,000 emails/month
• Good automation, forms, landing pages, etc.
• However, SMS is not included on the free plan; SMS starts on the paid Standard plan, with credits purchased separately. Sender Sender
• sender.net
• MailerLite — Great for digital-product creators, but not for your SMS requirement

• Very creator-friendly and has digital-product functionality.
• Free plan is currently 250 subscribers / 2,500 emails per month. MailerLite
• I'd choose it if you cared primarily about email, landing pages, and selling digital products—not if SMS is important.

What I'd do in your situation

Start with Brevo. You can build your email list and automations for $0, then pay only for the SMS credits when you actually need to text people. That makes more sense for a small digital-product business than paying a monthly fee just to have SMS available.

One important caveat: marketing SMS in the U.S. has consent/compliance requirements, and Brevo specifically notes TCPA/CTIA requirements for U.S. SMS. Brevo Help

If you tell me roughly how many subscribers you have (or expect) and how often you'd send SMS, I can narrow it down to the cheapest setup for you.

Yes. For a solopreneur selling digital products, you’ll probably want something that does email newsletters + simple automations + occasional SMS blasts without paying much upfront. The best fits are:

Brevo Help Omnisend### My shortlist for your situation

1. Brevo — probably the best starting point

brevo.com

Why it fits a digital-product solopreneur:

• Free plan includes email campaigns and SMS campaigns (SMS messages require paid credits). Brevo Help
• No need to have a large audience before it’s useful.
• Good for: - product launches
• coupon codes
• abandoned checkout reminders (if integrated)
• “new product dropped” texts
• simple customer follow-ups

A simple setup:

• Email: weekly newsletter + automated welcome sequence
• SMS: only for high-value moments (launches, limited-time offers, reminders)

2. Omnisend — better if your digital products behave like ecommerce

omnisend.com

Good if you sell:

• templates
• courses
• memberships
• downloads
• bundles

It has stronger ecommerce-style automation features. The free plan is aimed at smaller lists, with limits on contacts and email volume; SMS availability depends on plan and account setup. Omnisend Omnisend Help Center

3. MailerLite + a separate SMS tool — simplest creator stack

mailerlite.com

If SMS is only a “nice to have,” MailerLite is often easier:

• cleaner interface
• great landing pages/forms
• strong email automation

Then you can add SMS later through a dedicated provider if needed.

What I’d choose as a solo digital-product seller

• Under ~1,000 subscribers: Brevo
• Selling through Shopify/Gumroad/Lemon Squeezy-style funnels: Omnisend or Brevo
• Mostly building an audience/newsletter: MailerLite

One thing to keep in mind: SMS has stricter consent rules than email (especially in the US), so collect explicit text-message opt-ins rather than assuming email subscribers want texts.

If you tell me what you sell (course, templates, ebooks, SaaS, memberships, etc.) and where you sell it (Gumroad, Shopify, Podia, Kajabi, your own site), I can narrow it down.

Yes. Brevo is probably your best fit if you specifically want email + SMS in one place.

• Brevo — best overall for your use case. The free plan is $0 and includes email campaigns, SMS campaigns, transactional email/SMS, and up to 100,000 stored contacts. The catch: email is limited to 300 sends/day, and SMS itself isn't free—you buy SMS credits separately. Brevo Help Brevo Help Brevo Help help.brevo.com
• MailerLite — better if email is your priority. Its current free plan gives you 250 subscribers and 2,500 emails/month, plus automations, landing pages, and the ability to sell one digital product. However, SMS isn't included as a free-plan marketing feature, so you'd need another solution for SMS. MailerLite MailerLite mailerlite.com

What I'd choose for a solopreneur

If your goal is something like:

Lead magnet → email nurture → sell digital product → occasional promotional text

I'd start with Brevo. You can keep the whole contact list and both channels in one system, and only pay for SMS when you actually send texts.

One important caveat: in the U.S., marketing SMS has TCPA/CTIA compliance requirements, including appropriate consent. Brevo specifically notes U.S. sending-hour restrictions and SMS compliance requirements. Brevo Help

If you tell me roughly how many subscribers you have now (e.g. 100, 1,000, 5,000) and how often you'd want to text them, I can tell you which option will be cheapest and simplest.

Yes. For a solopreneur selling digital products, you’ll usually want email automation + simple broadcast SMS + landing forms + integrations without paying enterprise prices. The best free (or almost free) options are:

My top picks for your situation

1. Brevo — probably the best fit

Brevo’s free tier includes email campaigns and supports SMS campaigns (SMS is charged based on usage). It also includes basic automation, contact management, and transactional messaging, which works well for selling downloads, courses, templates, memberships, etc. Brevo Help

Good setup:

• Free lead magnet → email signup
• Welcome sequence → nurture emails
• Product launch emails
• Occasional SMS: “Your bonus expires tonight” or “New product drop”

2. Klaviyo — best if you want stronger automation

Klaviyo has a free tier that includes email plus a small amount of SMS/MMS credits, making it useful for testing text campaigns before committing. Klaviyo

Better if you need:

• Segmentation (“buyers of product A” vs “freebie subscribers”)
• Abandoned cart flows
• Personalized recommendations
• Revenue tracking

3. Mailchimp — good email starter, but not for free SMS

Mailchimp’s free plan focuses on email; SMS requires a paid add-on/plan. Mailchimp

What I’d choose as a solo digital-product seller

• Selling PDFs, templates, ebooks, coaching, courses: → Brevo
• Selling through Shopify or ecommerce flows: → Klaviyo
• Just building an audience and not ready for SMS costs: → start with a free email tool, add SMS later

One thing to keep in mind: SMS marketing generally requires explicit subscriber consent and compliance with rules like opt-out handling (for example, “Reply STOP to unsubscribe” in many regions).

If you tell me what you sell (ebooks, templates, courses, SaaS, memberships, etc.) and where you sell it (Gumroad, Shopify, Etsy, your own site, etc.), I can narrow it down to the best stack.

Yes. For a solopreneur selling digital products, you’ll usually want email automation + simple broadcast SMS, not a full enterprise CRM. A few free (or free-to-start) options worth considering:

Brevo Help Klaviyo Mailchimp### My shortlist for your use case

1. brevo.com — probably the best fit

Good for: selling courses, ebooks, templates, memberships, downloads.

Pros:

• Free plan includes email campaigns and SMS campaigns. Brevo Help
• Simple automation flows (welcome emails, lead magnets, product follow-ups).
• Doesn’t price purely by contacts, which can be friendlier as your list grows.
• Good if you have a newsletter + occasional text promotions.

Cons:

• SMS itself is usage-based, so “free” mainly means no platform fee; messages still consume credits. Brevo Help

2. klaviyo.com — best if you plan to scale

Good for: digital products with funnels, segmentation, and purchase tracking.

Pros:

• Free tier includes email plus a small amount of mobile messaging credit. Klaviyo
• Excellent segmentation (buyers vs. subscribers vs. inactive leads).
• Strong automations.

Cons:

• Can get expensive as your audience grows.
• More powerful than you may need at the beginning.

3. mailchimp.com — easiest, but weaker for SMS on free

Good for: simple newsletters and announcements.

Pros:

• Very beginner-friendly.
• Lots of templates.

Cons:

• SMS marketing is not included on the free plan. Mailchimp
• You’ll likely need a paid upgrade or separate SMS provider.

For a solo digital-product business, I’d set it up like this:

• Lead magnet → email welcome sequence - Day 0: deliver freebie
• Day 2: teach something useful
• Day 5: introduce paid product
• Day 7: offer discount or bonus
• SMS only for high-value moments - product launches
• limited-time discounts
• webinar reminders
• cart closing reminders

Avoid sending frequent texts; email should do the heavy lifting.

If I were choosing with a small audience today:

1. Brevo if you want simple + affordable.
2. Klaviyo if you expect ecommerce-level growth.
3. Mailchimp only if SMS is a “nice to have.”

A useful follow-up: what platform do you sell your digital products on (Gumroad, Shopify, Podia, Teachable, WordPress, etc.)? The best choice changes a lot based on integrations.

Yes. If you want one tool that does both email and simple SMS, I’d look at Brevo first.

🥇 Best fit: Brevo

brevo.com

• $0/month on the Free plan, with no time limit.
• 300 email sends/day and up to 100,000 stored contacts. Brevo Help Brevo Help
• Supports both email campaigns and SMS campaigns from the same platform. Brevo Help
• SMS isn't free, though—you buy prepaid SMS credits, starting at 100 credits, with pricing depending on the recipient's country. Brevo Help Brevo Help
• You can also build basic automations, which is useful for things like freebie → welcome emails → product offer. Brevo Help

So you could realistically start at $0 for email + pay only when you actually want to send SMS.

Another good option: MailerLite

mailerlite.com

MailerLite is arguably nicer if email + selling digital products is your primary concern. Its current Free plan includes 250 subscribers, 2,500 emails/month, automations, landing pages, signup forms, and one digital product. MailerLite MailerLite

However, SMS isn't part of that free plan, so I'd favor Brevo if SMS is a genuine requirement.

My recommendation for a solopreneur

I'd pick Brevo for your specific use case if you want SMS available without maintaining two separate platforms.

One caveat: if by "free SMS" you mean sending a small number of SMS messages every month without paying anything, that's much harder—legitimate SMS providers generally charge for the actual texts.

If you tell me roughly how many subscribers you have (or expect) and how many SMS messages you'd send per month, I can narrow this down to the cheapest setup.

Yes. For a solopreneur selling digital products, you’ll usually want email automation + a simple SMS option + low friction pricing. A few good fits:

Klaviyo Brevo Help### My shortlist for a solo digital-product business

1. Best overall: brevo.com

• Free tier is generous for getting started.
• Includes email campaigns and SMS capabilities (SMS itself generally uses credits).
• Good if you sell courses, templates, ebooks, memberships, or downloads and want simple automations. Brevo Help

2. Best if you expect to scale sales: klaviyo.com

• Built for revenue-focused marketing.
• Strong segmentation and automation (welcome sequences, abandoned checkout flows, customer follow-ups).
• Free tier includes email plus a small amount of mobile messaging capacity, suitable for testing SMS. Klaviyo

3. Simplest beginner setup: mailchimp.com

• Very easy for newsletters and basic funnels.
• However, SMS is not included on the free plan, so it’s less ideal if texting is a requirement. Mailchimp

For your use case, I’d set up:

• Lead magnet → welcome email sequence
• Weekly newsletter
• Product launch emails
• Occasional SMS for high-value moments (launch day, cart closing, limited offers)

A practical starting choice:

• Under ~500–1,000 subscribers: Brevo or Klaviyo free tier
• Selling higher-ticket courses/coaching: Klaviyo
• Mostly newsletters + occasional announcements: Brevo

One thing to check: SMS rules require proper subscriber consent (especially in the U.S.), so make sure your opt-in form explicitly asks people to receive texts.

If you tell me what you sell (templates, courses, ebooks, SaaS, etc.) and where you sell it (Gumroad, Shopify, Kajabi, your own site, etc.), I can narrow it down.

Yes. brevo.com is probably the closest fit for what you’re describing.

Best fit: Brevo

• $0/month forever on the Free plan.
• Email + SMS campaigns are both supported from the same platform. Brevo Help
• Free plan allows up to 100,000 stored contacts and 300 email sends/day. Brevo Help
• SMS itself isn't free—you buy prepaid SMS credits, with pricing depending on the recipient's country and message length. Brevo Help
• You can use automations, so you could do things like: - New subscriber → welcome email
• 3 days later → product tip
• Launch day → email + SMS
• Cart/customer follow-up → automated email

For a solopreneur selling digital products, I’d pick Brevo over MailerLite if having SMS in the same system is important.

One alternative

mailerlite.com has a very nice free email plan—2,500 emails/month and up to 250 subscribers—but its free plan is primarily an email-marketing offering; SMS is handled separately through MailerSend rather than being a simple built-in SMS campaign feature. MailerLite MailerLite

My recommendation: Start with Brevo if you want one simple email + SMS tool and don't mind paying for the actual texts.

If you tell me roughly how many subscribers you have and how many emails/SMS messages you'd send per month, I can also tell you which option will be cheapest.

Yes. Brevo is probably the best fit for a solopreneur who wants email + simple SMS without paying a monthly fee upfront.

• Brevo — best overall: Free plan includes email campaigns and SMS campaigns. You get 300 email sends/day, and SMS is pay-as-you-go rather than included for free. Brevo Help Brevo Help
• MailerLite — best for digital products/email: Its free plan is excellent for landing pages, automations, forms and selling a digital product, but SMS isn't included on the free plan. MailerLite MailerLite
• Omnisend — less attractive now: Its free plan is limited to 500 emails/month and 250 contacts, and as of May 4, 2026, new users need the Pro plan for SMS. Omnisend Help Center

What I'd choose

Brevo if SMS is genuinely important. You can keep your monthly software cost at $0 and simply pay for the texts you actually send.

MailerLite if email is 90% of what you care about and SMS is more of a "maybe later" feature.

For a digital-product business, I'd probably start with Brevo if you want things like “New product is live — 20% off today” via both email and text.

brevo.com

If you tell me roughly how many email subscribers you have and how many SMS messages you'd send per month, I can compare the actual costs of Brevo vs. a couple of alternatives.

Yes. Brevo is probably the best fit for what you described.

Best option: Brevo

Brevo has a $0/month free plan that includes both email and SMS campaigns. The free plan gives you:

• 300 emails/day
• Up to 100,000 contacts stored
• Email campaigns and automations
• SMS campaigns
• Drag-and-drop email builder
• Basic analytics
• No time limit on the free plan Brevo Help Brevo Help

The catch: SMS itself isn't free. You purchase prepaid SMS credits, starting at 100 credits, and the price varies by recipient country. Brevo Help Brevo Help

brevo.com

One alternative worth knowing about

MailerLite is arguably nicer if your business is primarily digital products + email. Its free plan includes landing pages, forms, automations, and even one digital product, but its current free plan is limited to 250 active subscribers and 2,500 emails/month. SMS isn't included in that free plan. MailerLite MailerLite

mailerlite.com

What I'd choose

For a solopreneur selling digital products:

Brevo → if SMS is genuinely part of your marketing.
MailerLite → if email is the main thing and you only need a small list.

If you're thinking something like "email people when I launch a product, then occasionally text them a reminder/offer", I'd start with Brevo because you can keep both channels in one place without paying a monthly subscription.

Yes — Brevo is probably the best fit for what you’re describing.

brevo.com has a $0/month free plan that includes:

• Up to 300 email sends/day
• Unlimited contacts
• Email campaigns and basic automation
• SMS campaigns
• Drag-and-drop email builder
• Basic reporting
• No credit card required Brevo Help Brevo Help

The important catch: SMS isn't free. You can use SMS through Brevo, but SMS messages are charged separately on a pay-as-you-go basis. So you could keep your email marketing at $0 and only pay when you actually send texts.

For a digital-product solopreneur

I'd rank them:

1. Brevo — best if you specifically want email + SMS in one place.
2. MailerLite — excellent for simple email funnels and landing pages, but SMS isn't its main strength. Its free-plan limits have also become considerably tighter in 2026. MailerLite MailerLite
3. Kit — great for creators selling digital products, but doesn't offer native SMS, so you'd need another service. Hack'celeration

My pick for you: Brevo, especially if your SMS use is occasional—e.g. “New product just dropped,” launch reminders, or a limited-time offer.

If you tell me roughly how many email subscribers you have and how often you'd send SMS, I can tell you which option would actually cost you the least.

Yes. Brevo is probably the best fit for what you're describing.

• Brevo: Free plan includes 300 emails/day, plus email and SMS campaigns. The catch: SMS messages themselves aren't free—you buy SMS credits. Brevo Help Brevo
• Sender: Excellent free email plan—up to 2,500 subscribers and 15,000 emails/month—but SMS is on its paid Standard plan rather than the free tier. Sender Sender
• Mailchimp: Free email plan exists, but SMS isn't available on the free plan. Mailchimp
• Omnisend: Free plan is limited to 500 emails/month and 250 contacts, and new subscribers generally need the Pro plan for SMS. Omnisend Help Center

What I'd choose for a solopreneur

Brevo if you specifically want email + occasional SMS in one place without a monthly subscription. You can keep your software cost at $0 and simply pay for SMS when you actually send texts. Brevo Help

If your business is primarily digital products, I'd also consider Kit for email—it has a particularly generous free creator plan and is designed around selling digital products—but you'd need a separate SMS solution. zapier.com

If you tell me roughly how many email subscribers you have and how many texts you'd send per month, I can narrow it down to the cheapest setup.

Yes. For a solopreneur selling digital products, there are a few good options — but the “best” free tool depends on whether SMS is a nice-to-have or a core sales channel.

Here are the strongest fits:

Brevo Klaviyo### My picks for a solo digital-product business

1. Best overall starter: Brevo
brevo.com

• Good if you want: - email newsletters
• product launches
• simple automations
• occasional SMS reminders
• The free plan includes email sending and supports SMS campaigns, though SMS usage generally requires purchasing credits. Brevo Help

2. Best if you sell through Shopify/WooCommerce or have customer behavior data: Klaviyo
klaviyo.com

• Strong for: - abandoned-cart flows
• buyer segmentation
• “bought product A → offer product B” sequences
• The free tier is small but includes email plus some mobile message credits, making it useful for testing SMS. Klaviyo

3. Best “creator-friendly” email tool: MailerLite
mailerlite.com

• Excellent for: - lead magnets
• newsletters
• digital downloads
• simple funnels
• I’d pair it with a dedicated SMS tool if texting becomes important.

A simple stack I’d use as a solopreneur

Starting out (0–1,000 subscribers):

• Email: Brevo or MailerLite
• SMS: only for high-value moments (launch day, deadline reminders, VIP offers)

Growing audience:

• Move to Klaviyo if you have purchase/event data
• Build: 1. Welcome sequence
• Product launch sequence
• Customer onboarding
• Upsell/cross-sell sequence

One caution: SMS marketing has stricter consent rules than email (especially in the U.S.), so make sure subscribers explicitly opt in to texts and include required opt-out handling.

If you tell me what kind of digital products you sell (courses, templates, ebooks, memberships, software, etc.) and your approximate list size, I can narrow this to the best 1–2 choices.

Yes. Brevo is probably the best fit for what you described.

• Free plan: $0/month, with up to 300 emails/day and up to 100,000 contacts. Brevo Help
• SMS: It supports both email and SMS campaigns from the same platform. SMS isn't free—you buy SMS credits separately—but you don't need a paid email-marketing subscription just to have SMS capability. Brevo Help Brevo
• Good for a solopreneur: Drag-and-drop emails, forms, segmentation, automations, and transactional messaging are available. Brevo Help
• Digital products: You can use it for lead magnets, launch emails, customer follow-ups, and simple SMS promotions without needing a full ecommerce marketing platform.

brevo.com

One important caveat

If by "free SMS" you mean a platform where both email and SMS sending are completely free, your options get much worse. SMS itself generally has a per-message carrier cost, so even platforms with free plans usually charge for texts.

For comparison, Omnisend's current free plan does not include SMS for new users; SMS now requires its Pro plan. Omnisend Help Center Omnisend Help Center

My pick for you: Start with Brevo Free, use email as your primary channel, and buy a small amount of SMS credit only when you have a promotion worth texting about. That's likely the lowest-friction setup for a one-person digital-product business.

Yes — Brevo is probably the best fit if you want one tool for both email + simple SMS without paying a monthly subscription.

My shortlist

• brevo.com — Best overall for your use case. Its free plan includes 300 email sends/day, unlimited contacts, email campaigns, SMS campaigns, and basic automation. SMS itself is pay-as-you-go rather than included for free, so you only pay when you actually send texts. Brevo Help Brevo Help
• mailerlite.com — Best if email is your priority. The free plan gives you 250 subscribers and 2,500 emails/month, plus landing pages, forms, automations, and digital-product functionality. Its SMS offering isn't as compelling for a free-first setup. MailerLite MailerLite
• omnisend.com — Worth considering if you're ecommerce-heavy. Its free plan supports 500 emails/month to 250 contacts, but new accounts currently need the Pro plan for SMS, so I wouldn't pick it specifically for your requirement. Omnisend Help Center Omnisend Help Center

What I'd do as a solopreneur

I'd start with Brevo if your goal is something like:

"Email my list when I launch a new digital product, then occasionally text people about a sale or deadline."

You can keep the email side essentially free while paying only for the SMS messages you actually send. That's a much better fit than committing to a monthly "email + SMS" platform before you have substantial volume.

One caveat: with SMS, you'll need proper consent/opt-in and unsubscribe handling—especially if you're texting U.S. customers.

If you tell me roughly how many email subscribers you have and how many texts you'd send per month, I can narrow this down to the cheapest setup for you.

Yes. If you want email + SMS in one place, I’d start with Brevo.

Best options for a solopreneur

• brevo.com — best overall for email + SMS

• Free forever
• Up to 300 emails/day
• Includes email and SMS campaigns
• Marketing automation and basic analytics
• SMS isn't free—you buy SMS credits separately. Brevo Help Brevo Help
• Particularly good if your goal is something like: new subscriber → email sequence → occasional SMS promotion → product sale.
• sender.net — best generous free email plan

• Free up to 2,500 subscribers and 15,000 emails/month
• Automation, forms, landing pages, etc.
• But SMS is not included on the free plan; SMS starts with the paid Standard plan, currently starting around $7/month, plus SMS costs. Sender Sender
• mailerlite.com — best if email is your priority

• Free up to 250 subscribers / 2,500 emails per month
• Includes automations, landing pages, forms, and even one digital product.
• SMS isn't part of the free plan. MailerLite MailerLite

What I'd pick

For a digital-product solopreneur, I'd go:

Brevo → if SMS is genuinely part of your marketing strategy.

MailerLite → if you mostly want email and SMS is just a "maybe later."

One important distinction: "free SMS" is generally not really free because carriers and messaging providers charge for texts. Brevo lets you use SMS campaigns on the free account, but you purchase the SMS credits separately. Brevo Help

If you tell me roughly how many subscribers you have and how many emails/SMS you expect to send per month, I can narrow this down to the cheapest setup for you.

Yes — Brevo is probably the best fit if you specifically want email + SMS in one tool.

Best options

• brevo.com — Best overall for email + SMS

• Free forever, no credit card required.
• 300 email sends/day on the free plan.
• Includes email campaigns and SMS campaigns.
• SMS itself isn't free: you buy SMS credits separately, and pricing varies by destination. Brevo Help Brevo Help
• You can also automate marketing flows, which is useful for digital products. Brevo Help
• mailerlite.com — Better if email is your priority

• Free up to 250 subscribers and 2,500 emails/month.
• Particularly nice for solopreneurs because the free tier includes landing pages, forms, automations, and even one digital product. MailerLite MailerLite
• But it doesn't give you the same straightforward free-plan SMS capability as Brevo, so you'd likely need another service for texting.

What I'd choose

For a digital-product solopreneur, I'd start with Brevo if SMS is genuinely part of your strategy. You can keep the software cost at $0 and only pay when you actually send texts.

A simple setup could be:

Lead magnet → email welcome sequence → product launch emails → occasional SMS for launches/limited-time offers.

One caveat: if you're texting U.S. customers, SMS marketing has consent and regulatory requirements (including TCPA/CTIA considerations), so don't treat SMS like another email channel. Brevo specifically notes U.S. restrictions and required compliance. Brevo Help

If you tell me roughly how many subscribers you have and how often you'd send SMS, I can narrow it down to the cheapest/best setup for you.

Yes. For a solopreneur selling digital products, you have a few good options — but a key distinction: truly free email + SMS together is rare. Most tools give you free email and charge for SMS usage (because texts have carrier costs). StackFYI Toolradar

Here are the ones I’d look at:

Zapier ToolradarFor your situation (one-person business + digital products), I’d narrow it down:

Best overall starter setup

Kit + a separate SMS tool later

• Build your audience with email first.
• Use automations like: - lead magnet → welcome sequence
• product launch emails
• abandoned checkout reminders (if supported by your checkout platform)
• Add SMS only for high-value moments (launches, limited offers, reminders).

Kit is specifically built around creators selling digital products. Zapier

Best if you really want email + SMS in one dashboard

Brevo

• Manage email campaigns and SMS from one place.
• Good for simple broadcasts like: - “New product is live”
• “Sale ends tonight”
• “Webinar starts soon”
• SMS is usually not free because messages themselves cost money. StackFYI

What I’d avoid as a solo creator

• Heavy enterprise tools (too much setup)
• SMS-first platforms unless you already have a large phone list
• Paying for SMS before you know your audience responds to texts

One practical stack for many digital-product creators:

• Landing pages + email list: Kit or MailerLite
• Checkout: Gumroad, Lemon Squeezy, Shopify Digital Products, etc.
• SMS later: Brevo, Klaviyo, or a dedicated SMS provider

If you tell me what kind of digital products you sell (courses, templates, ebooks, software, memberships, etc.) and your current list size, I can suggest the cheapest stack that won’t require switching later.

Yes. For a solopreneur, I’d look at Brevo first.

🥇 Best fit: brevo.com

Brevo’s Free plan is $0 forever and includes both email campaigns and SMS campaigns in the same platform. You get:

• 300 email sends/day
• Up to 100,000 stored contacts
• Email newsletters and automations
• SMS campaigns
• Drag-and-drop email builder
• Basic analytics
• No credit card required Brevo Help Brevo Help

The catch: SMS isn't free. You can use the SMS functionality on the free plan, but you purchase SMS credits separately. Brevo Help

For a digital-product business, that's actually a pretty attractive setup: free email + pay only when you want to send texts.

Another option: sender.net

Sender has a much more generous free email allowance—up to 2,500 subscribers and 15,000 emails/month—but SMS isn't included on its Free Forever plan. SMS starts with a paid plan. Sender

What I'd choose

MailerLite is particularly nice for selling digital products, but its current free plan doesn't include marketing SMS. MailerLite

So if “I want one free tool that does both email and simple SMS” is the requirement, I'd start with Brevo.

If you tell me roughly how many subscribers you have (e.g. 100, 500, 2,000) and how often you'd send SMS, I can tell you which one would be cheapest in practice.

Yes. For a solopreneur selling digital products, there are a few good options — but the “free” part usually means free email + limited SMS credits, not unlimited texting (SMS costs money because carriers charge per message). www.penlly.com

Here are the ones I’d look at:

My shortlist for your situation:

1. Best overall: Brevo

Good fit if you:

• sell PDFs, courses, templates, memberships, etc.
• want newsletters + automated sequences
• only send SMS for launches, reminders, or VIP offers

A simple setup:

• Email: weekly newsletter + welcome sequence
• SMS: “new product is live,” “cart closes tonight,” “early access” messages

2. Best if you sell through ecommerce: Klaviyo

Better if your digital products have:

• purchase tracking
• abandoned checkout flows
• customer segmentation
• repeat buyers

It’s more powerful, but can be more than a solo creator needs early on.

3. Simplest creator stack: MailerLite + a separate SMS tool

If 90% of your marketing is email, this is often the least complicated route. MailerLite is popular with creators because it keeps landing pages, forms, automation, and newsletters simple. www.techradar.comwww.penlly.com Add SMS only when you actually have a reason to text.

A few SMS campaigns that tend to make sense for digital products:

• “Your bonus expires tonight”
• “New template/course dropped”
• “Live workshop starts in 1 hour”
• “VIP customers get first access”

One thing to keep in mind: in the U.S., SMS marketing requires proper consent and compliance (opt-in, unsubscribe handling, etc.), so don’t upload your email list and start texting unless those contacts specifically opted into SMS.

For a solo digital-product business, I’d probably start with Brevo if you want email + SMS in one place, or MailerLite if email is your main channel and SMS is occasional. www.techradar.comwww.penlly.com

Yes, but the “free + email + SMS” combination is a little harder to find than email-only tools. For a solopreneur selling digital products, I’d look at these:

For your specific use case (solo creator + digital products), I’d probably rank them:

1. Brevo — best overall starter

Good if you want:

• email newsletters
• simple automations (welcome sequence, abandoned checkout follow-up, launches)
• occasional SMS blasts

The downside: SMS usually isn’t “free forever”; you pay for text credits.

2. Scubamail — closest match to “email + SMS in one place”

It’s aimed more directly at businesses wanting both channels, with email, SMS, and WhatsApp campaigns from one contact list. www.scubamail.io

3. MailerLite + a separate SMS tool

If your priority is selling digital products (Gumroad, Lemon Squeezy, Shopify digital downloads, courses, etc.), MailerLite is one of the easiest creator tools. It doesn’t solve SMS by itself, but many creators pair it with an SMS provider later. www.techradar.com

A few things I’d consider before choosing:

• How big is your email list? (0–500 vs 10k+ changes the answer)
• Do you need automated texts, or just occasional launch announcements?
• Where do you sell? (Gumroad, Shopify, Podia, Teachable, your own site, etc.)

For most solopreneurs selling digital products, I’d start with Brevo or MailerLite, and only add SMS once you have a reason to text customers regularly. SMS can be powerful, but it also comes with consent/compliance requirements (especially in the U.S.).

For a solopreneur selling digital products, the tricky part is that free email marketing is common, but truly free SMS marketing is rare. Most tools give you free email and let you add SMS later on a pay-as-you-go basis. StackFYI Zapier

Here are the options I’d look at:

My picks for your situation:

1. If SMS is important: choose Brevo.

• You can start with email for free.
• Add occasional texts like “new product drop,” “cart reminder,” or “limited-time offer” without moving to a complicated marketing stack. Salesforce
• If your business is mostly digital products (courses, ebooks, templates, memberships): choose Kit.

• It is designed around creators selling digital products.
• Pair it with a separate SMS provider later if texting becomes a major channel. Zapier
• If you want the simplest beginner setup: choose MailerLite.

• Great for lead magnets, welcome sequences, and selling from a small audience. Zapier

A practical solopreneur stack would be:

• Under ~1,000 subscribers: Kit or MailerLite + no SMS initially.
• Growing list + wanting texts: Brevo.
• Selling physical products or ecommerce-style offers: Omnisend. Zapier Toolradar

One thing to keep in mind: SMS marketing has extra compliance requirements (consent, opt-out language, carrier rules), so it’s worth using a platform that handles those workflows rather than sending bulk texts manually. Solopreneur

If you tell me what kind of digital products you sell (templates, courses, ebooks, memberships, software, etc.) and your current list size, I can narrow this down to one choice.

For a solopreneur selling digital products, I’d look for email-first tools with lightweight SMS, because many “free” platforms either don’t include SMS or only offer it as a paid add-on. A few options:

My shortlist for your use case:

1. Best all-around for a digital product creator: Penlly
   • Good fit if you want one place for:
     • lead magnet → email sequence → product launch → SMS reminder
     • basic segmentation
     • simple automations
   • The free plan is designed around email + some SMS usage. www.penlly.com

2. Best if you mostly care about email (and SMS is occasional): MailerLite
   • Very popular with creators selling courses, templates, ebooks, and memberships.
   • I’d pair it with a low-cost SMS provider only when needed. www.techradar.com

3. Best “keep it simple” SMS add-on: TextMagic
   • Useful for launch-day texts, coupon reminders, or webinar notifications without committing to a large marketing suite. solopreneurtools.io

A couple of things to keep in mind:

• SMS marketing requires explicit opt-in (don’t just upload your email list and start texting).
• For digital products, SMS usually works best for high-value moments:
  • “Your course opens today”
  • “Cart closes tonight”
  • “New template bundle is live”
  • “Your discount expires in 3 hours”

If I were setting this up for a one-person digital product business, I’d probably start with MailerLite for the core email engine or Penlly if SMS is a must-have from day one, then only pay for SMS volume once it proves it drives sales.

Yes — but there’s an important catch: truly free email + SMS together is getting harder to find.

For a solopreneur selling digital products, I’d look at these:

My pick for you: Brevo

Brevo's pricing/details

Brevo's Free plan is $0, gives you up to 300 email sends per day, and explicitly includes email and SMS campaigns. However, the SMS messages themselves aren't free—you purchase SMS credits when you want to send them. help.brevo.com

That's actually a pretty good setup for a digital-product solopreneur: keep your regular email marketing essentially free, then pay only when you want to send a text such as:

“Your new template is live — grab it here → …”

If SMS isn't essential: MailerLite

MailerLite

I'd actually choose MailerLite over Brevo if your priority is simplicity and you're mostly doing email. Its current Free plan gives you 250 subscribers and 2,500 emails/month, plus automations, landing pages, forms, and the ability to sell digital products directly. www.mailerlite.com

So my recommendation would be:

MailerLite → if 90%+ of your marketing will be email.
Brevo → if you specifically want email + SMS under one roof.

One thing I'd avoid for your use case: Omnisend. Its current rules changed in May 2026, and new Free-plan users don't get SMS; SMS now requires Pro. support.omnisend.com

If you tell me roughly how many subscribers you have (e.g. 100, 1,000, 5,000) and whether you're selling through Gumroad, Shopify, your own website, etc., I can narrow it down to the cheapest setup for you.

Yes. If SMS is a must-have alongside email, I’d look at Brevo first.

🥇 Brevo — best fit for your use case

Brevo’s free plan includes both email and SMS campaigns, so you can keep everything in one place. You get:

• $0/month
• Up to 300 emails/day
• Up to 100,000 stored contacts
• Email campaigns + SMS campaigns
• Basic automation
• Drag-and-drop email builder
• Contact segmentation and reporting

The catch: SMS itself isn't free—you purchase SMS credits separately. help.brevo.com

For a solopreneur selling digital products, that's actually a pretty good setup: email handles your regular launches/newsletters, while SMS can be reserved for high-value messages like “sale ends tonight”, abandoned-cart reminders, or new-product alerts.

🥈 MailerLite — better email experience, but SMS isn't on the free plan

MailerLite is arguably nicer if your priority is email + landing pages + selling digital products. Its free plan supports up to 250 subscribers and 2,500 emails/month, and even includes a basic digital-product selling capability. www.mailerlite.com

But its SMS functionality isn't included in that free marketing plan, so it doesn't meet your “free email + simple SMS” requirement as cleanly as Brevo.

My pick: Start with Brevo if SMS is genuinely part of your marketing strategy. Start with MailerLite if SMS is only a “nice to have” and you care more about the email/digital-product side.

If you tell me roughly how many subscribers you have and how often you'd send SMS, I can narrow it down to the cheapest setup (including alternatives like Kit, Klaviyo, and HubSpot).

Yes — but there’s an important catch: truly free email + SMS together is getting harder to find in 2026.

My top pick: Brevo

For a solopreneur, Brevo is probably the closest fit to what you're asking for:

• $0/month Free plan
• Email + SMS campaigns in the same platform
• Up to 300 email sends/day
• Up to 100,000 stored contacts
• No time limit on the free plan help.brevo.com
• You can start with email and only pay for SMS usage when you actually send texts.

The big distinction: the platform is free, but SMS messages aren't free. You'll need to purchase SMS credits. That's normal because carriers charge for text delivery.

One I'd avoid for your specific use case: Omnisend

Omnisend has a nice free email plan—500 emails/month to 250 contacts—but new users can't send SMS on the free plan. As of May 4, 2026, SMS requires the Pro plan, starting at $59/month, plus SMS credits. support.omnisend.com

Another good email option: MailerLite

MailerLite is arguably nicer if email is your main channel. Its current free plan gives you 250 subscribers and 2,500 emails/month, plus landing pages, forms, automations, and even the ability to sell one digital product. www.mailerlite.com

But you'd need a separate SMS service, so it's less convenient if you specifically want email + SMS under one roof.

For your situation, I'd start with Brevo. You can build your email list for $0, send occasional promotional emails, and add SMS when you have a compelling offer—without committing to a monthly SMS platform fee.

One caveat: if you're texting U.S. customers, make sure you collect the appropriate SMS marketing consent/TCPA opt-in; don't simply upload phone numbers from your email list. help.brevo.com

If you tell me roughly how many email subscribers you have and how many SMS messages you'd send per month, I can compare the actual costs of Brevo vs. a couple of alternatives for your business.

Yes — Brevo is probably the best fit for what you described.

🥇 Brevo — best email + SMS combo

Its free plan includes both email campaigns and SMS campaigns, which is unusual. You get:

• $0/month
• Up to 100,000 contacts stored
• 300 email sends/day
• Email campaigns + automations
• SMS campaigns
• Drag-and-drop email builder
• Basic analytics
• No time limit on the free plan

The catch: SMS isn't free. You buy SMS credits separately, starting at 100 credits, and pricing depends on the recipient's country. help.brevo.com

For a solopreneur selling digital products, that's actually a pretty nice setup: keep your email marketing free, and only pay when you actually want to send an SMS.

Another good option: MailerLite

MailerLite is arguably nicer if email is your primary channel. Its current free plan gives you 250 subscribers and 2,500 emails/month, plus landing pages, forms, automations, and even the ability to sell one digital product. www.mailerlite.com

But Brevo wins for your specific requirement because SMS is built into the platform.

My recommendation: Start with Brevo if you want something like:

Free lead magnet → email welcome sequence → product launch emails → occasional SMS like “Last day for the launch discount.”

If you tell me roughly how many subscribers you have (or expect) and whether you're selling through Gumroad, Shopify, your own site, etc., I can narrow it down to the best 2–3 options for your exact setup.

For a solopreneur selling digital products, I’d look for email-first tools with lightweight SMS add-ons rather than a full enterprise marketing suite. The catch is that truly free email + SMS together is rare because SMS has carrier costs; most tools give you free email and charge for texts. www.stackfyi.comwww.salesforce.com

Here are the options I’d consider:

My picks for your situation:

1. Best simple stack: Kit + TextMagic

• Kit handles:
  • lead magnets
  • welcome sequences
  • product launches
  • creator-style newsletters
• TextMagic handles:
  • “new product is live”
  • webinar reminders
  • VIP customer texts

This keeps SMS costs tied to actual usage. www.sequenzy.comsolopreneurtools.io

2. Best all-in-one: Brevo

• Better if you really want one dashboard.
• Good for a small digital product business that wants email + occasional SMS campaigns. www.stackfyi.comwww.salesforce.com

3. Best if you sell courses/templates/downloads and are growing an audience: Kit

• Many creators prefer it because the automation is built around subscribers rather than traditional “marketing lists.” mailtoolfinder.com

A simple setup I’d use as a solo creator:

1. Landing page → collect email + SMS opt-in
2. Automated 5–7 email welcome sequence
3. Weekly/value newsletter
4. SMS only for high-value moments (launches, deadlines, limited offers)

One important note: in the U.S., SMS marketing requires proper consent and opt-out handling (for example, clear permission and STOP/unsubscribe mechanisms), so don’t just upload your email list and start texting.

If you tell me what kind of digital products you sell (ebooks, templates, courses, memberships, software, etc.) and roughly how many subscribers you have, I can narrow this down to the best fit.

Yes. Brevo is probably the best fit for what you described.

• Free forever: $0/month, no credit card required.
• Email: up to 300 emails/day.
• SMS: supports SMS campaigns on the free plan, but SMS credits are purchased separately—so the platform is free, while the texts themselves aren't. help.brevo.com
• Automation: includes basic multichannel automation, useful for things like welcome sequences and product launches. help.brevo.com
• Good for a solopreneur: one user seat and plenty of contacts can be stored, although the daily email limit is the real constraint. help.brevo.com

Brevo's official pricing

One important alternative

MailerLite is arguably nicer if email is your main channel. Its current free plan gives you 250 subscribers and 2,500 emails/month, plus landing pages, forms, automations, and digital-product selling. However, SMS isn't included in the free plan in the same way Brevo offers it. www.mailerlite.com

MailerLite's official pricing

My pick for you: Brevo if you genuinely want to send occasional SMS promotions alongside email. MailerLite if SMS is more of a "nice to have" and you want a particularly simple digital-product/email setup.

If you tell me roughly how many subscribers you have and how often you'd send SMS, I can narrow it down to the cheapest setup for you.

Yes. If you want one tool that handles both email and simple SMS, I’d look at Brevo first.

Best fit: Brevo

• $0/month on the free plan.
• Up to 100,000 contacts stored.
• 300 emails/day on the free tier.
• Supports email campaigns + SMS campaigns from the same platform. help.brevo.com
• SMS isn't free, though—you purchase SMS credits separately. help.brevo.com
• Good fit for a solopreneur because you can start without committing to a monthly subscription.

The important distinction is: free email + paid-as-you-go SMS, rather than truly free SMS.

Another option: MailerLite

MailerLite is arguably nicer if email is your main channel. Its current free plan gives you 250 active subscribers and 2,500 emails/month, plus landing pages, forms, automations, and even support for selling one digital product. www.mailerlite.com

However, SMS isn't included in the free MailerLite marketing plan, so you'd be looking at a separate SMS solution.

What I'd choose for your situation

My pick: Brevo if SMS is genuinely part of your marketing strategy. You could use email for launches, newsletters and nurture sequences, then occasionally pay for SMS credits for things like “Last day: 20% off” or “Your new product is live.”

If you tell me roughly how many subscribers you have and how many SMS messages you'd send per month, I can also find the cheapest setup (including alternatives like Kit, Loops, TextMagic, etc.) for your specific volume.

Yes. Brevo is probably the best fit for what you described.

Brevo has a $0/month free plan that includes both email and SMS campaigns. The free tier currently allows up to 300 email sends per day, and SMS credits are purchased separately—you don't get a free pool of SMS messages. help.brevo.com

How I'd compare the main options

MailerLite's free plan is particularly nice for digital products—it includes landing pages, signup forms, automations, and even selling one digital product, but SMS isn't part of the free offering. www.mailerlite.com

For a solopreneur, I'd pick Brevo if SMS is genuinely important. You could use email for launches, newsletters, abandoned-cart/follow-up sequences, etc., and reserve paid SMS credits for high-value messages like:

• "Your launch starts tomorrow"
• "20% off ends tonight"
• "New product is live"
• "Last 2 hours to grab it"

That keeps SMS costs under control rather than paying for a full SMS platform.

If you tell me roughly how many subscribers you have (e.g. 300, 1,000, 5,000) and what you're selling, I can recommend the cheapest setup and tell you what I'd use for email + SMS + checkout.

Yes. For a solopreneur selling digital products, Brevo is probably the best fit if you want one simple platform for both email and SMS.

My top picks

Brevo: Its free plan includes email campaigns, automation, forms, and SMS campaigns; you simply purchase SMS credits separately. SMS credits don't expire. help.brevo.comhelp.brevo.com

Brevo

Omnisend: It looks attractive at first, but there's an important 2026 change: new users on the free plan cannot send SMS. SMS now requires the Pro plan for people subscribing after May 4, 2026. support.omnisend.com

Omnisend

MailerLite: Excellent free email option—up to 250 subscribers and 2,500 emails/month—but it's not really a free email + SMS solution. www.mailerlite.com

MailerLite

What I'd do in your situation

I'd start with Brevo. You can keep your monthly software cost at $0, build your email list, and only pay when you actually send SMS messages. That's particularly attractive for digital products where you might use SMS sparingly for things like:

• New product launches
• Limited-time discounts
• Webinar/course reminders
• Cart/checkout nudges
• "Last day" promotions

One caveat: for US marketing SMS, you'll need proper TCPA consent/opt-in, and Brevo has specific requirements around SMS compliance. help.brevo.com

If you tell me roughly how many email subscribers you have (or expect) and how many SMS messages you'd send per month, I can tell you which option is likely to be cheapest.

Yes. The best fit I’d look at first is Brevo.

🥇 Brevo — best if SMS matters

Brevo has a genuinely free-forever plan that includes:

• 300 email sends/day
• Up to 100,000 stored contacts
• Email campaigns + basic automation
• SMS campaigns
• Drag-and-drop email builder
• No credit card required

The important catch: SMS itself isn't free—you buy SMS credits separately. But you don't need a paid monthly subscription just to have SMS functionality. help.brevo.com

For a solopreneur, that's a pretty compelling setup: use email for your regular marketing and SMS for things like launch reminders, flash sales, cart/checkout nudges, or "new product is live" messages.

What about MailerLite?

MailerLite is arguably nicer if email + selling digital products is your primary focus. Its free plan gives you 250 subscribers and 2,500 emails/month, plus automations, landing pages and the ability to sell a digital product. www.mailerlite.com

However, SMS isn't part of the free marketing plan, so you'd need another solution for SMS. That's why I'd favor Brevo for your particular requirement.

My recommendation

For your situation, I'd start with Brevo. You can stay at $0/month while your list is small, then pay only for SMS credits when you actually send texts. www.brevo.com

If you tell me roughly how many email subscribers you have (or expect) and how often you'd send SMS, I can also compare Brevo against 2–3 other options and tell you which would be cheapest.