ChatGPT answers, unedited

For a tiny nonprofit offering low-cost training + accepting donations, I’d avoid all-in-one “nonprofit platforms” that lock you into monthly fees. A low-cost stack is usually better: one tool for courses, one for donations, connected through your website.

Here are the options I’d shortlist:

My recommendation for your situation

For a tiny nonprofit with limited budget, I’d start with:

Option A — Cheapest and simplest

• Website: WordPress (low-cost hosting)
• Courses: Tutor LMS or LearnPress (free tiers)
• Donations: Zeffy
• Payments for courses: Stripe or PayPal directly

This keeps you from paying a platform percentage on every donation and avoids expensive LMS subscriptions.

Option B — “We don’t want to maintain tech”

Use:

• Payhip for paid courses
• Zeffy for donations
• A simple website as the front door

This is probably the lowest-maintenance setup.

Platforms I’d be cautious about

• Big LMS platforms can look cheap initially but often take transaction fees or require paid upgrades.
• Donation platforms advertising “free” may still charge payment processing or percentage fees; check whether “no platform fee” really means no cut of donations. BetterWorld

A few questions would change the recommendation:

1. Are your courses live workshops, self-paced videos, or both?
2. Roughly how many learners per month (20, 100, 1,000+)?
3. Do you need certificates, quizzes, or learner tracking?
4. Are you a U.S. 501(c)(3) nonprofit? (This affects donation tools.)

For a tiny nonprofit, I’d avoid paying for a traditional LMS unless you really need advanced student management. The cheapest setup is usually to separate donations from course sales.

My top recommendation: Zeffy + Payhip

• Donations: zeffy.com — probably the strongest fit for your donation side. Zeffy charges nonprofits $0 platform fees and $0 payment-processing fees, including card fees; it is funded by optional donor tips. Zeffy Zeffy
• Paid courses: payhip.com — very inexpensive and easy to launch. Its free plan has no monthly fee, unlimited products/revenue, and supports online courses, but it takes 5% per sale, plus Stripe/PayPal processing. Payhip Payhip

This gives you a simple setup:

Your website → "Donate" → Zeffy
Your website → "Take a Course" → Payhip

The big advantage is no monthly software bill while you're small. If course revenue eventually gets high enough, Payhip's $99/month Pro plan removes its 5% transaction fee, so you can switch when the math makes sense. Payhip

If "absolutely zero platform fee" is non-negotiable

I'd consider Moodle + a separate donation processor.

moodle.org is free/open-source LMS software, so there is no Moodle platform fee. You'd need hosting and some technical setup, though. MoodleCloud is easier but is a paid hosting service; Moodle itself can be self-hosted for free. Moodle Services knowledge base

For donations, pair it with Zeffy, which keeps your donation costs at $0. Zeffy

One option I'd not pick for your requirement

Ko-fi is attractive for small organizations, but its free tier takes 5% on things other than one-time tips, including shop sales and memberships. So it doesn't really satisfy your "no platform fees" requirement for paid courses. Ko-fi Help

My verdict

I'd start with Zeffy + Payhip. For a tiny nonprofit, the 5% course-sale fee is often a better tradeoff than spending $50–$200+/month on an LMS that you don't yet need.

One important distinction: "no platform fee" doesn't necessarily mean "no payment-processing fee." Card/ACH processors still have costs; for example, Stripe offers nonprofit pricing in certain circumstances, but its discounted nonprofit rate is specifically tied to donation-heavy accounts and doesn't apply to tuition/course sales. support.stripe.com

If you tell me roughly how many students you expect (e.g. 20, 100, 500) and what you charge per course, I can narrow this down to the cheapest setup for your actual numbers.

For a tiny nonprofit, I’d separate donations from course delivery rather than force one platform to do both. The best genuinely low-cost setup I found is:

My top pick: Zeffy + a free/cheap course platform

zeffy.com is particularly attractive for your donation side. It charges nonprofits $0 platform fees, $0 transaction fees, and $0 credit-card fees; Zeffy covers the payment-processing costs and is funded by optional donor contributions at checkout. Zeffy Zeffy

For courses, pair it with a platform that lets you sell access without taking a percentage—or use your existing website plus a payment processor.

Give Lively is another excellent donation choice: it says it charges eligible nonprofits no setup, platform, subscription, monthly, or annual fees, with Stripe handling the payment infrastructure. Give Lively

Better Giving is also genuinely $0 for its fundraising platform and says nonprofits receive 100% of donations, with optional donor contributions funding the service. Better Giving Better Giving

I wouldn't choose Patreon if “no platform fees” is a hard requirement. New creator pages are on a 10% platform fee, before applicable payment-processing fees. Patreon Help Center Patreon Help Center

What I'd do in your shoes

If your courses are relatively simple—videos/PDFs, a few lessons, quizzes, and paid enrollment—I'd build:

Your website → course platform → payment processor

and put a prominent Donate button through Zeffy.

That avoids giving a platform 5–10% of every course sale while also giving you a proper nonprofit donation system.

If you tell me (1) whether you're a U.S. 501(c)(3), (2) whether courses are video/live/in-person, and (3) roughly how many students you expect per month, I can narrow this down to 2–3 specific platforms with current pricing and tell you which I'd pick.

For a tiny nonprofit, I’d avoid Teachable/Thinkific-style platforms if “no platform fees” is a hard requirement. The cheapest setup is usually self-hosted WordPress + free LMS/e-commerce plugins, with a separate nonprofit donation processor.

My top recommendation: WordPress + Tutor LMS + WooCommerce + Zeffy

Why I like this for you:

• Tutor LMS Free — lets you build courses, lessons, quizzes, etc. The free version can sell courses through WooCommerce. wordpress.org
• WooCommerce — free/open-source, with 0% revenue share and no monthly platform fee. You pay only your payment processor's fees. woocommerce.com
• Zeffy — for donations, it charges your nonprofit $0 platform fees and $0 payment-processing fees; it covers the card-processing cost itself. Donors can optionally tip Zeffy. www.zeffy.com
• You own your website, course content, student data and donor relationship, rather than being locked into an LMS vendor.

So your basic cost can be roughly:

The catch is that hosting isn't free, and payment processors still charge their normal processing fees for course purchases. WooCommerce itself takes no revenue share. woocommerce.com

Even simpler: Tutor LMS's newer native e-commerce

Tutor LMS now also has native e-commerce, including Stripe/PayPal support, subscriptions and memberships, so you may not even need WooCommerce depending on exactly what you want to sell. wordpress.org

If you want the absolute lowest-tech option

Look at Givebutter for donations. With optional donor tips enabled, it currently advertises $0 platform fees and $0 processing fees for nonprofits, with its guarantee covering processing costs. givebutter.com

I'd still use an actual LMS for the courses rather than trying to make Givebutter handle course delivery.

Another good option: Moodle

If someone on your team is technically comfortable, Moodle is genuinely free/open-source with no licensing fees and is much more powerful as a learning environment. You'd host it yourself and connect a payment method for paid enrollment. docs.moodle.org

My ranking for your situation:

1. 🥇 WordPress + Tutor LMS + WooCommerce + Zeffy — best balance of cheap, flexible and nonprofit-friendly.
2. 🥈 WordPress + Tutor LMS native e-commerce + Zeffy — potentially simpler once configured.
3. 🥉 Moodle + donation platform — cheapest software-wise, but more technical.
4. Givebutter + separate course platform — excellent if fundraising is more important than having everything under one roof.

One particularly interesting newer option is Learnomy, which advertises a free WordPress LMS with unlimited courses/students, built-in Stripe/PayPal checkout and $0 platform fees; I'd treat it as a promising newer alternative rather than my first choice until you've evaluated its maturity/support. wordpress.orgwoocommerce.comlearnomy.app

If you tell me (1) roughly how many students you expect, (2) whether you already have a WordPress website, and (3) whether courses are one-time purchases or memberships, I can narrow this to the cheapest practical stack and exact setup for your nonprofit.

For a tiny nonprofit, I’d avoid paying for an all-in-one LMS right away. The best low-cost setup I found is actually two tools, because the truly free fundraising platforms aren’t designed to deliver structured courses.

My top recommendation: Zeffy + Ruzuku

1. Donations: Zeffy

• $0 platform fees
• $0 transaction/credit-card fees to the nonprofit
• Donations, recurring gifts, donor CRM, receipts, events, and an online store
• Zeffy covers the payment-processing costs; it is funded by optional donor contributions. www.zeffy.com
• Particularly good if preserving every dollar of small donations matters.

2. Paid courses: Ruzuku

• $0/month to start
• Unlimited courses
• You can actually charge students on the free plan
• 0% Ruzuku transaction fee; you only pay normal Stripe/PayPal processing
• The catch: the free tier is limited to 5 students total. www.ruzuku.com
• Importantly, Ruzuku offers 30% nonprofit pricing: its Core plan is currently $58/month billed annually, with unlimited students and zero transaction fees. www.ruzuku.com

If you want everything in one place

I'd look hardest at Givebutter. It has $0 platform fees when optional donor tips are enabled, plus donations, CRM, events, payments, and an online store. givebutter.com

But: it's fundamentally a fundraising platform, not a proper course/LMS platform. If your training needs lessons, videos, quizzes, progress tracking, student discussions, etc., I'd use Ruzuku rather than trying to force Givebutter to be your classroom.

What I'd choose for you

Bottom line: Start with Zeffy + Ruzuku Free. You can run the whole operation for $0/month while you're small, with only payment-processing costs on course sales. Once you exceed five course students, ask Ruzuku for its nonprofit rate rather than jumping to a mainstream LMS. www.ruzuku.com

If you tell me roughly how many students you expect per course (e.g. 10, 50, 200) and whether courses are self-paced or live, I can narrow this down to the cheapest setup for your actual volume.

For a tiny nonprofit, I’d avoid platforms that take 5–10% of every course sale. The best low-cost setup I found is actually a two-part stack rather than one all-in-one platform:

My top pick: WordPress + Tutor LMS + Better Giving

• WordPress — free/open-source website platform. You pay only for inexpensive hosting and your domain.
• Tutor LMS — free LMS plugin that supports unlimited courses, quizzes, lessons, student dashboards, and selling courses. Its current free version has native e-commerce and supports payment gateways including Stripe and PayPal. wordpress.org
• Better Giving — particularly attractive for your donations: $0 platform fees, with 100% of donations granted to nonprofits. Donors can pay by card, ACH, PayPal, Apple Pay/Google Pay, etc. better.givingbetter.giving

The catch is that payment processing fees still exist (Stripe/PayPal/etc.). “No platform fee” doesn't mean literally zero cost for credit-card transactions.

Why I like this for you

If you're only bringing in, say, $500–$2,000/month, a percentage-based course platform can eat a surprisingly large chunk of your revenue. With the WordPress/Tutor LMS approach, there's no per-course-sale platform percentage; your main recurring expense is inexpensive web hosting.

For donations, Better Giving is even more compelling because it specifically targets nonprofits and has no platform or fund-management fees. better.givingbetter.giving

What I would not choose

One important caveat: WordPress requires a little more setup and maintenance than Payhip/Gumroad. If nobody on your team is comfortable maintaining a website, the labor cost can outweigh the monetary savings.

If you tell me roughly how many courses you have, your expected monthly sales/donations, and whether you already have a website/domain, I can narrow this down to the cheapest practical setup for your nonprofit.

For a tiny nonprofit offering low-cost training, I’d avoid conventional course platforms that take 5–10% of each sale. There’s a particularly good low-cost approach:

My top pick: LearnShare + Zeffy

• LearnShare — has a free plan for building and selling courses/cohorts, with zero platform fees; you pay only Stripe's normal payment-processing fee. The free tier currently supports up to 10 active learners/month. learnshare.io
• Zeffy — excellent for your donations. It's free for nonprofits and says it charges $0 platform fees and covers credit-card/transaction fees, relying on optional donor tips instead. www.zeffy.comwww.zeffy.com

That gives you:

Website → Training courses → LearnShare checkout → Stripe
Website → Donate button → Zeffy

If you want everything in one system

LearnDash is worth considering if you already have (or want) a WordPress website. Its nonprofit program offers 25% off LearnDash and 15% off bundles, and it's much more full-featured as an LMS. www.learndash.com But it's not as close to "free" as the option above.

One important distinction

If by "no platform fees" you mean literally keeping 100% of course-sale revenue, that's harder. Payment processors such as Stripe generally still charge processing fees. Zeffy is unusual because it covers those fees for nonprofit fundraising. www.zeffy.comwww.zeffy.com

My recommendation for your situation: start with LearnShare's free tier for courses + Zeffy for donations. You can get started with essentially no recurring software cost, and upgrade only when your enrollment grows.

If you tell me roughly how many students you expect per month and what you charge per course (e.g. 20 students × $25), I can compare the actual annual cost of 3–5 platforms for you.

For a tiny nonprofit offering low-cost training + donations, I’d avoid all-in-one “creator” platforms that take a percentage of every sale. A low-cost stack is usually better: one tool for courses, one for donations, and connect them with your website/email.

Here are good fits:

My shortlist for a tiny nonprofit:

1. Lowest cost + easiest:
   • Courses: WordPress + LearnPress
   • Donations: Zeffy or Give Lively
   • Payments: Stripe/PayPal processing only

2. If training is your main mission:
   • Use Moodle LMS (especially if you need certificates, assessments, or reporting).

3. If you want the least technical setup:
   • Use a hosted course platform with a free tier, but check whether it charges transaction fees on paid courses. Many “free” course platforms take 5–10% of sales.

A practical setup for a small nonprofit could be:

• Public website: WordPress
• Courses: Moodle or LearnPress
• Donations: Zeffy or Give Lively
• Payments: Stripe nonprofit pricing (where available)
• Email: a free/low-cost nonprofit email tool

One caution: “no platform fees” usually does not mean “no fees at all” — payment processors (credit cards, ACH, PayPal, etc.) may still charge transaction costs. betterworld.org

If you tell me roughly how many learners you expect per year, whether courses are self-paced or live, and whether you need certificates, I can narrow this to 2–3 options.

For a tiny nonprofit, I’d avoid the big all-in-one LMS platforms at first. You can get very close to $0 in platform fees by separating donations from course delivery.

My top recommendation: Zeffy + Ruzuku

1. Donations: Zeffy

• $0 platform fees
• $0 payment-processing fees for eligible nonprofits
• Donations, recurring gifts, events, memberships, etc.
• Zeffy covers the payment-processing costs; donors can optionally contribute to Zeffy. www.zeffy.com
• Particularly attractive if your priority is keeping 100% of small donations.

2. Paid courses: Ruzuku

This is unusually good for testing a small training program:

• $0/month
• 0% platform transaction fee
• Connect Stripe or PayPal directly
• You can actually sell a course on the free plan
• The catch: the free plan is limited to 5 students. www.ruzuku.com

So you could run your first small cohort essentially for the cost of Stripe/PayPal processing alone.

If you expect more than 5 paying students

I'd look at Teachery. It has 0% platform transaction fees, unlimited courses/students, and currently costs $49/month or $470/year. There's also a lifetime option, although the advertised lifetime price is changing on August 15, 2026, so I'd verify the current price before purchasing. www.teachery.co

What I'd choose for you

One important distinction: “0% platform fee” doesn't necessarily mean literally no fees. Stripe/PayPal payment processing can still apply. Zeffy's nonprofit model is unusual because it covers those fees; Ruzuku and Teachery leave ordinary payment-processing costs with you. www.ruzuku.com

For a tiny nonprofit, I'd start with Zeffy + Ruzuku Free, validate whether people will actually pay for your training, and only move to a $49/month platform once the 5-student limit becomes a real problem. That avoids committing scarce nonprofit dollars before you have course revenue.

For a tiny nonprofit offering low-cost training + accepting donations, I’d avoid expensive “all-in-one” nonprofit suites. A low-cost stack is usually better: one tool for courses and one for donations/payments.

Here are the strongest options:

My top picks for your situation

Option 1 — Cheapest practical setup

• Website: WordPress
• Courses: Moodle (or a WordPress LMS plugin)
• Payments: Stripe
• Donations: Zeffy or Better Giving

This gives you control and avoids paying a percentage of donations to a platform. Zeffy says it charges nonprofits no platform fees and funds itself through optional donor contributions. www.zeffy.com Better Giving similarly offers a free nonprofit donation form model with no platform fees. better.giving

Option 2 — Simplest for a tiny team

• Use Payhip for paid courses
• Use Zeffy/Better Giving for donations
• Embed links/buttons into your existing website

This avoids having to administer a full learning system.

Option 3 — If your training is mission-focused and recurring

• Moodle + a volunteer/admin who can manage it
• Add Stripe payments for course registration
• Keep donor management separate

Platforms I would be cautious about

• Large nonprofit CRMs with “free” tiers: they often become expensive as contacts/users grow.
• Course marketplaces: they take control of your audience and often take revenue shares.
• Donation platforms that advertise “free” but take a percentage of gifts.

A good tiny nonprofit setup is often:
Free donation platform + inexpensive course system + your own website.

If you tell me:

1. number of learners per year,
2. whether courses are live Zoom-style or self-paced,
3. whether you need certificates, and
4. whether you already have a website (WordPress/Wix/Squarespace/etc.),

I can narrow it to a specific stack.

For a tiny nonprofit, I’d avoid the big all-in-one course platforms. Their “0% transaction fee” plans can still cost $80–$100+/month, which is a lot if your course revenue is modest. For example, LearnWorlds’ no-platform-fee tier is currently $79/month billed annually. www.learnworlds.com

My top pick: WordPress + LearnPress + Givebutter

This is probably the lowest-cost setup that still gives you a real course website.

• WordPress — inexpensive hosting, with no percentage taken from your sales.
• LearnPress — free LMS plugin for WordPress. It supports selling courses and payment methods including PayPal, Stripe and WooCommerce. wordpress.org
• Givebutter — use it specifically for donations. With optional donor tips enabled, Givebutter currently charges nonprofits 0% platform fees and 0% processing fees under its Guarantee; donors can optionally cover the costs. givebutter.com

So your recurring cost can essentially be just inexpensive WordPress hosting + your domain, rather than $80–$100/month for an LMS.

If you want everything in one platform

MoodleCloud is worth considering if your priority is training rather than marketing. Its entry plans start around $170/year, but the plan that supports selling courses through Stripe is currently $490/year, so it's less attractive for a very small organization. www.moodlecloud.com

What I'd choose

\*Paid-course selling via Stripe starts on MoodleCloud's Small plan. www.moodlecloud.com

One important distinction: “no platform fees” doesn't necessarily mean no payment-processing fees. With a WordPress/LearnPress setup, Stripe/PayPal will normally charge their own processing fee on course purchases. That's unavoidable unless you use a special nonprofit/payment arrangement.

If you tell me roughly how many students you expect per year, your typical course price (e.g. $25/$50/$100), and whether you need video hosting, I can narrow this down to the cheapest practical setup and estimate your actual annual cost.

For a tiny nonprofit, I’d avoid traditional LMS platforms with monthly subscriptions. There are two especially good approaches:

🥇 Best overall: systeme.io

systeme.io is probably the closest match if you want one place for paid courses + checkout + basic marketing.

• $0/month free plan
• 0% platform/transaction fee on course sales
• Free plan includes 1 course
• Up to 2,000 student contacts
• Students can pay through Stripe/PayPal; you still pay their normal payment-processing fees.
• Supports one-time payments, payment plans, memberships, drip content, and student progress. systeme.iopayhip.comsysteme.io
• You can also use its funnels/email tools rather than stitching together several services.

For your situation: I'd start here for courses, and use a separate nonprofit-focused service for donations.

🥇 Best for donations: Zeffy

Zeffy is unusually good for a nonprofit because it charges $0 platform fees and $0 payment-processing fees to the nonprofit. It covers the processing costs itself and is funded by optional donor contributions. www.zeffy.comsysteme.io

It handles:

• Donations
• Recurring donations
• Events/tickets
• Memberships
• Donor CRM
• Donation forms you can embed on your existing website

So a very inexpensive setup would be:

Your website → "Donate" → Zeffy
Your website → "Courses" → systeme.io

That gives you $0/month in software costs to start, with only the normal payment-processing economics on course sales.

Another strong option: Givebutter

Givebutter is excellent if you want more sophisticated fundraising/CRM features. With optional donor tips enabled, its current model gives nonprofits 0% platform fees and 0% nonprofit-paid processing fees under its Givebutter Guarantee. givebutter.com

I'd choose Givebutter over Zeffy if donor management, events, auctions, campaigns, and marketing are particularly important. For simply collecting donations as cheaply as possible, Zeffy is simpler.

What about Payhip?

Payhip is worth considering because it's very easy to use and supports courses, memberships, and digital products. But its free plan takes 5% of each sale, so it doesn't meet your "no platform fees" requirement. Its Pro plan removes the transaction fee but costs $99/month. payhip.com

My recommendation

If I were setting this up for your nonprofit, I'd use systeme.io + Zeffy. It's hard to beat that combination when your priorities are tiny budget, paid training, and keeping as much donation money as possible. www.zeffy.comsysteme.io

One caveat: "0% platform fee" doesn't necessarily mean absolutely no cost—course sales through Stripe/PayPal still have their ordinary payment-processing charges. Zeffy is the unusual case because it says it covers those fees for nonprofit donations. www.zeffy.comsysteme.io

For a tiny nonprofit, I’d avoid the big course platforms unless you really need their advanced features. The best low-cost setup I found is:

🥇 Best overall: Ruzuku + Zeffy

For courses: Ruzuku

• $0/month on its nonprofit/free plan
• 0% platform transaction fees
• Unlimited courses
• Free tier supports up to 5 students
• Students can pay through Stripe/PayPal; you only pay their normal payment-processing fees. www.ruzuku.comwww.ruzuku.com
• Ruzuku offers nonprofits a 30% discount on its paid plan, bringing Core to about $58/month when billed annually. www.ruzuku.comwww.ruzuku.com

For donations: Zeffy

• $0 platform fees
• Zeffy says it also covers credit-card/transaction fees, so your nonprofit receives 100% of donations.
• Donation forms, recurring donations, memberships, events, etc.
• It makes money from optional donor contributions rather than charging your organization. www.zeffy.com

Why I like this combination: you get a genuinely free fundraising system plus a proper course platform, without sacrificing 5–10% of course sales to platform fees.

🥈 If you want one system

systeme.io is worth considering. Its free plan can host courses, accept paid enrollments, and it says it charges 0% transaction fees; you still pay Stripe/PayPal processing. systeme.io

The downside is that it's designed more as an all-in-one marketing/sales platform than as nonprofit fundraising software, so Zeffy + Ruzuku is the cleaner nonprofit setup.

🥉 Another very cheap course option

FreshLearn has a $0 plan with one product and 25 manual enrollments, and charges 0% transaction fees. Paid plans start at $35/month on its current pricing. systeme.iofreshlearn.com

My recommendation

If you're truly tiny and just getting started, I'd start with Zeffy + Ruzuku Free. You can validate whether people will actually pay for the training before taking on any recurring software expense.

For a tiny nonprofit offering low-cost training, I’d avoid platforms that advertise “free” but take 5–10% of every course sale. There are a couple of good ways to get close to what you want.

My top pick: Ko-fi

Best if you want one very simple storefront for donations + paid training.

• Free to start.
• 0% service fee on one-time tips/donations if you opt out of Ko-fi Contributor. Standard PayPal/Stripe processing still applies. shop.ko-fi.com
• Digital products can be sold through its Shop, including access to tutorials and online events. ko-fi.com
• The free selling features generally have a 5% Ko-fi fee, so it isn't truly zero-fee for paid courses. ko-fi.com
• Payments go directly to your PayPal/Stripe account rather than being held by Ko-fi. shop.ko-fi.com

Verdict: Excellent for donations and simple paid training, but not ideal if “zero platform fee on course sales” is non-negotiable.

Best for actual courses: Payhip

Payhip has a particularly nice course setup and lets you offer free or paid courses. However, its free plan currently charges 5% per transaction, plus PayPal/Stripe processing. Its $99/month Pro plan removes the transaction fee, which obviously isn't attractive for a tiny nonprofit unless you're doing substantial sales. payhip.com

Verdict: Probably the easiest option if the course experience matters more than minimizing every fee.

For donations specifically: Zeffy

If you're a qualifying nonprofit, Zeffy is unusually good:

• $0 platform fees
• $0 payment-processing fees charged to the nonprofit
• Donors are optionally asked to tip Zeffy, which funds the service. www.zeffy.com

I'd use Zeffy for your donation/fundraising side, rather than trying to force your course platform to also be your fundraising system.

Another donation option: Better Giving

Better Giving is nonprofit-focused and offers a free donation platform with $0 platform fees. It supports recurring gifts, embeddable donation forms, donor data, and multiple payment methods. better.giving

What I'd do in your shoes

Zeffy + Payhip is probably the strongest low-cost combination:

If you're selling very inexpensive courses ($10–$50), I'd also seriously consider Ko-fi for everything if you value simplicity over having a sophisticated LMS.

One important caveat: I don't know whether by “no platform fees” you mean literally 0% on both donations and course sales. If that's an absolute requirement, I can narrow this down to platforms that charge $0 platform fees for both, including nonprofit-specific options and open-source/self-hosted choices.