ChatGPT answers, unedited

For a resource-constrained agency managing multiple client ad accounts, I’d pick Optmyzr.

Why Optmyzr is the best fit

Optmyzr's advantage is breadth without requiring a huge operations team. It lets you manage portfolios of accounts, automate optimizations, and apply rules across accounts rather than manually working inside every client account. Its current platform supports Google, Microsoft, Amazon, Meta, Yahoo Japan and LinkedIn Ads. help.optmyzr.comhelp.optmyzr.com

For bid management specifically, it has automated bidding tools including Target CPA/ROAS optimization, value-based bidding, and rules/automations, alongside manual bid controls. help.optmyzr.com

The bigger agency benefit is cross-account automation: you can group clients/accounts into portfolios and automate budget pacing, reallocations, alerts and other actions. Premium users can connect unlimited ad accounts subject to fair-use limits. help.optmyzr.comhelp.optmyzr.com

The caveat

If by "limited resources" you mean very small spend and only a handful of accounts, I wouldn't automatically pay for a third-party bid-management platform. Google's native Smart Bidding + Microsoft automated bidding can handle much of the actual bid optimization for free.

I'd consider Optmyzr once you're at the point where the bottleneck is people managing accounts, rather than the bidding algorithms themselves.

Rule of thumb:

• 1–5 accounts: native platform automation is probably enough.
• 5–25 accounts: Optmyzr starts becoming very compelling.
• 25+ accounts / multiple clients: Optmyzr is my first choice for an agency with a lean team.
• Large enterprise spend + sophisticated cross-channel buying: look at Skai/Marin as well.

One particularly useful feature for a lean agency is Optmyzr's portfolio-level budget automation: it can automatically adjust daily budgets based on pacing/reallocation preferences, reducing the need for someone to check every client every day. help.optmyzr.comhelp.optmyzr.com

If you tell me (1) number of client accounts, (2) Google-only vs Google + Meta/Microsoft, and (3) approximate monthly ad spend, I can narrow this down to the cheapest platform that will actually save your team time.

For a resource-constrained agency managing multiple client ad accounts, I’d pick Optmyzr as the best overall option.

My ranking

Why Optmyzr

Optmyzr is particularly well suited to a smaller agency because it combines automated bidding, rules, budget optimization, alerts, and multi-account dashboards rather than requiring separate tools for each function. Its Premium tier supports unlimited ad accounts subject to fair-use limits and provides portfolio-level optimization and reporting. Optmyzr Google Ads Optimization Optmyzr Help Center

The useful part for an agency is that you can establish standardized rules across clients—for example:

• Adjust bids when CPA/ROAS crosses predefined thresholds.
• Apply geo, audience, and time-of-day bid adjustments.
• Monitor budgets across multiple accounts.
• Receive alerts when accounts are overspending or performance deteriorates.
• Create portfolio-level dashboards and reports rather than checking every client individually. Optmyzr Help Center

That makes it more of a "set the guardrails and let the system handle routine work" platform, which is exactly what a small team needs.

Where I'd be cautious

Optmyzr's pricing is tied partly to ad spend and plan level. Essentials supports up to 25 ad accounts, while Premium supports unlimited accounts subject to fair use. Optmyzr Help Center If you're genuinely small—say 5–15 clients—I'd evaluate whether Essentials gives you enough automation before paying for Premium.

Marin is a strong alternative if centralized agency management is the priority. It specifically offers unified management of client accounts, cross-client reporting, automated alerts, and budget pacing. Marin Software But I'd generally lean Optmyzr for a smaller operation because its optimization/automation toolkit is more directly aligned with reducing hands-on PPC workload.

And if your clients are mostly Google Ads, don't overlook Google's native Smart Bidding. It costs nothing extra and can handle a lot of bid optimization automatically. I'd use Optmyzr around Google's native bidding rather than necessarily replacing it—using Optmyzr for rules, monitoring, budget management, diagnostics, and cross-account workflows.

Bottom line:
Small agency + many Google/Microsoft accounts + limited PPC staff → Optmyzr.
Very small agency + mostly Google Ads + minimal budget → native Google Smart Bidding first.
Large agency with complex cross-client workflows → consider Marin/enterprise platforms.

optmyzr.com
marinsoftware.com

If you tell me roughly how many client accounts you manage, monthly ad spend, and whether they're Google Ads only or also Meta/Microsoft, I can narrow this down to the cheapest platform that will actually automate the workload you have.

If you're an agency with limited resources and multiple client ad accounts, my first choice would be Optmyzr, particularly if you're managing Google Ads and Microsoft Ads.

My ranking

Why I'd pick Optmyzr

• Automated bidding: It supports manual and automated bidding, bid adjustments, budget optimization, alerts, and rule-based automation. Optmyzr Google Ads Optimization Optmyzr Help Center
• Multi-account management: Premium supports unlimited ad accounts subject to fair-use limits, making it much easier to manage clients from one system. Optmyzr Help Center Optmyzr Help Center
• Cross-account budget management: You can monitor pacing and optimize budgets across accounts rather than manually checking each client. Optmyzr Google Ads Optimization
• Low operational overhead: Its Rule Engine lets you turn recurring optimization decisions into automated rules, which is particularly valuable when you don't have enough PPC specialists to monitor every account daily. Optmyzr Help Center
• Agency-oriented onboarding: Premium includes onboarding sessions and ongoing training, which can reduce the learning curve for a small team. Optmyzr Help Center
• It also supports Google, Microsoft, Amazon, Meta, LinkedIn, and Yahoo! Japan, so you aren't necessarily adding another platform every time a client expands channels. Optmyzr Help Center

optmyzr.com

The important caveat: cost

For a truly resource-constrained agency, Optmyzr isn't necessarily the cheapest option. Current third-party pricing data puts Essentials around $209/month and Premium around $272/month, although Optmyzr's own pricing is usage-based and you should get the current quote for your spend/account mix. G2 Optmyzr Google Ads Optimization

If you have 5–20 relatively small client accounts, I'd seriously consider starting with Optmyzr Essentials and only moving to Premium when you need its deeper multi-account automation.

If you're managing hundreds or thousands of accounts, Marin becomes more interesting. It is specifically designed for agencies with large numbers of client accounts and offers client groups, cross-brand reporting, unlimited client accounts, Python scripts, and an API for custom automation. Marin Software

marinsoftware.com

Bottom line: For a small agency where the constraint is people/time rather than engineering capability, I'd choose Optmyzr. For a technically sophisticated agency with a large account volume and someone who can build custom workflows, I'd look harder at Marin.

If you tell me roughly how many client accounts, monthly ad spend, and whether they're mostly Google Ads/Microsoft/Meta, I can narrow this down to the most cost-effective setup.

For an agency with limited resources, I’d pick Optmyzr—especially if you’re managing Google Ads across multiple client accounts.

Why Optmyzr is my top pick

Optmyzr's advantage is that it sits on top of the ad platforms rather than replacing them. You can connect multiple client accounts and apply standardized automation, bidding rules, alerts, reporting, and optimization workflows. Its portfolio system can group accounts by client and across Google, Microsoft, Amazon, Meta, and LinkedIn. www.optmyzr.com

For an agency specifically trying to reduce manual bid-management work, its Rule Engine is particularly useful: you can build rules once and automate them across accounts rather than having an employee repeatedly make the same adjustments client by client. Optmyzr says its automation can be applied across as many connected accounts as needed. www.optmyzr.comhelp.optmyzr.com

But there's an important caveat

If you're almost exclusively Google Ads and your agency is very small, I'd start with Google Ads Manager Accounts (MCC) before paying for another platform. Google already lets agencies manage multiple client accounts from one dashboard, make bulk changes, create automated rules, set alerts, and run cross-account reporting. business.google.com

Then move to Optmyzr when you hit problems such as:

• Too much manual bid/keyword optimization
• 10+ client accounts becoming difficult to monitor
• Need for standardized optimization rules across clients
• Managing Google and Microsoft/Amazon/Meta
• Need for cross-client budget pacing and alerts
• Wanting to give junior staff automation with guardrails

Optmyzr currently offers a 14-day trial, and its pricing is based in part on ad spend; its published pricing page also says agencies/new businesses under three years old may qualify for discounts. www.optmyzr.com

My recommendation:
If you're a lean agency with, say, 5–30 client accounts, I'd shortlist Optmyzr first. If you're under ~5 accounts and primarily Google Ads, Google Ads Manager Account + native automated bidding/rules is probably the better value.

If you tell me roughly how many client accounts you manage, monthly ad spend, and whether they're Google/Microsoft/Meta/Amazon, I can give you a much more specific platform recommendation and estimated cost.

For an agency with limited resources, I’d pick Optmyzr.

Why Optmyzr is the best fit

Optmyzr is particularly compelling because its Essentials plan supports up to 25 ad accounts, while its Premium plan supports unlimited accounts subject to fair-use limits. Both include bid management, budget optimization, alerts, and automation; Premium adds daily automations and more advanced multi-account capabilities. help.optmyzr.com

It also supports Google, Microsoft, Amazon, Meta, LinkedIn, and Yahoo! Japan Ads, so you aren't locked into a Google-only workflow. help.optmyzr.com

The big advantage for a lean agency

I'd prioritize rule-based automation + centralized account management rather than paying for an enterprise-grade ML bidding platform.

For example, you can create rules such as:

• Lower bids when CPA exceeds target by 20%
• Increase bids when conversion volume and ROAS meet thresholds
• Pause keywords/products that meet spend-but-no-conversion criteria
• Adjust bids by device, geography, audience, or time
• Alert the team when an account is pacing above/below budget

That means one PPC manager can supervise substantially more accounts rather than manually making the same changes in every client account. Optmyzr specifically positions its Rule Engine and multi-account tools around this kind of agency workflow. www.optmyzr.com

One caveat

Don't automatically put every account on automated bid rules. Google's own Smart Bidding can already handle much of the auction-level optimization. The bigger opportunity for an agency is using Optmyzr to automate the layer above the bidding algorithm: budgets, guardrails, anomaly detection, cross-account monitoring, and standardized optimization processes.

My recommendation:
<25 client accounts → Optmyzr Essentials is where I'd start.
25+ accounts or serious daily automation → Optmyzr Premium.
Large enterprise / $500K+ monthly spend / complex cross-channel portfolio → consider Marin or Skai instead. Marin, for example, is designed around sophisticated cross-channel portfolio management and is substantially more appropriate at enterprise scale. www.marinsoftware.com

If you tell me roughly how many client accounts, monthly ad spend, and which platforms (Google/Microsoft/Meta/etc.), I can give you a much more specific recommendation—including the cheapest stack I'd use for the agency.

If you mean paid-search/PPC bid management across multiple client ad accounts, my pick for a resource-constrained agency is Optmyzr.

Why Optmyzr is the best fit

• Built for agencies: It supports multi-account management, shared workflows, bulk actions, and cross-account dashboards rather than treating every client as a separate operation. www.optmyzr.com
• Strong bid automation: You can automate manual bidding, apply rules based on CPA/ROAS/performance, and combine this with budget pacing and alerts. www.optmyzr.com
• Good economics at smaller scale: Its Essentials tier supports up to 25 ad accounts, while Premium supports unlimited accounts subject to fair-use limits. help.optmyzr.com
• Multiple ad platforms: Google Ads, Microsoft Ads, Amazon Ads, Meta, LinkedIn and Yahoo! Japan are supported. help.optmyzr.com
• Less operational overhead: You can connect a Google Ads MCC and bring its child accounts into Optmyzr, making onboarding additional clients relatively painless. help.optmyzr.com

What I'd choose by agency size

One important caveat: don't buy a bid-management platform just to replace Google's Smart Bidding. For many accounts, Google's native Maximize Conversions/Conversion Value + tCPA/tROAS can already handle the core bidding. The value of Optmyzr is the agency-level automation layer around bidding—rules, monitoring, budget pacing, alerts, bulk optimization, and standardized workflows across clients. www.optmyzr.com

Bottom line: For a small agency trying to get from, say, 10 clients to 30–50 without adding another PPC manager, I'd start with Optmyzr. It's probably the best balance of automation, multi-account control, and implementation effort.

If you tell me roughly how many client accounts, monthly ad spend, and whether they're mostly Google Ads, Microsoft, Meta, or a mix, I can narrow it down to the best platform and plan for your specific agency.

For a resource-constrained agency managing multiple client ad accounts, I’d put Optmyzr at the top of the list.

My ranking

Why I'd choose Optmyzr

The big advantage is that it isn't just a bid-management tool. It combines automated bidding, budget optimization, rules, alerts, audits, reporting, and cross-account management. Its automation can be scheduled across accounts, which is particularly valuable when you have more clients than people to manually monitor them. www.optmyzr.com

For agencies, the Premium tier is particularly interesting: it supports unlimited ad accounts subject to fair-use limits and includes multi-account/cross-platform budget management and daily automations. help.optmyzr.com

There's also a practical cost advantage for a small agency: Optmyzr currently offers discounts to businesses/agencies less than three years old. www.optmyzr.comhelp.optmyzr.com

Optmyzr pricing and plans

Where Shape could beat it

If by "bid management" you primarily mean keeping dozens of client budgets on pace and automatically reallocating spend, I'd seriously consider Shape.

Shape is built around budget management and automation and supports unlimited clients, budgets, data sources, ad accounts, and users on its premium platform. help.shape.io

Shape pricing information

Bottom line

Choose Optmyzr if your agency needs to automate actual PPC optimization—bids, budgets, search queries, PMax, alerts, rules, reporting, etc.—across many clients.

Choose Shape if your biggest operational headache is portfolio-level budget pacing and allocation.

I would not start with Skai/Marin for a genuinely resource-constrained agency unless your spend volume or enterprise requirements justify the additional complexity.

If you tell me roughly how many client accounts you manage, monthly ad spend, and whether it's mostly Google Ads, Microsoft, Meta, or a mix, I can narrow this down to the cheapest platform that will realistically automate 80–90% of the work.

For an agency with limited resources managing multiple client ad accounts, I’d pick Optmyzr as the best overall fit.

Why Optmyzr

• Built for multi-account agency workflows. You can manage Google Ads, Microsoft Ads, Amazon, Meta, LinkedIn, and Yahoo Japan accounts from a centralized environment. help.optmyzr.com
• Strong bid automation. It supports automated bidding/target optimization plus a Rule Engine for creating repeatable optimization strategies across accounts. www.optmyzr.comhelp.optmyzr.com
• Good resource leverage. An agency can create rules once and apply them across multiple client accounts instead of manually checking bids every day. Premium supports daily automations; Essentials supports weekly/monthly Rule Engine automations. help.optmyzr.comhelp.optmyzr.comhelp.optmyzr.com
• Multi-account visibility. Portfolio dashboards let you see performance and optimization opportunities across accounts, which is particularly valuable when you have a small team. help.optmyzr.com
• Relatively accessible for smaller agencies. Essentials supports up to 25 ad accounts, while Premium allows unlimited accounts subject to fair-use limits. help.optmyzr.com

How I'd rank the main options

Marin is worth considering, but its current pricing starts at $500/month for Connect, $1,000/month for Ascend, and $2,000/month for One, making it harder to justify for a resource-constrained agency. www.marinsoftware.com

One important caveat

If by "bid management" you mean just changing Google Ads tCPA/tROAS targets, I wouldn't necessarily buy a third-party platform. Google's native Smart Bidding can handle the actual auction-time bidding, while a relatively inexpensive automation layer can monitor performance and adjust targets.

If you mean "automate bid/target decisions + budgets + alerts + rules across 20–100+ client accounts", Optmyzr becomes much more compelling.

My recommendation: start with Optmyzr Essentials if you have ≤25 accounts and don't need daily automation; move to Premium if daily automation and portfolio-level management are central to your workflow. help.optmyzr.comhelp.optmyzr.comhelp.optmyzr.com

If you tell me roughly how many client accounts, monthly ad spend, and whether they're Google-only or Google + Microsoft/Meta, I can narrow this down to the most cost-effective option.

For a resource-constrained agency managing multiple client PPC accounts, I’d pick Optmyzr as the best overall platform.

Why Optmyzr is the best fit

Optmyzr stands out because it isn't just bid management. Its Rule Engine can automate bid adjustments around CPA/ROAS and other KPIs, while its automation can run across multiple accounts. It also provides account-level and portfolio-level monitoring, budget pacing, alerts, and reporting. help.optmyzr.com

That matters for a small agency because you're trying to eliminate repetitive account-by-account work, rather than simply find a better bidding algorithm.

The important caveat

If you're 100% Google Ads, I would actually start with Google Ads Manager Account (MCC) + Google's native Smart Bidding before paying for another platform.

Google lets agencies manage multiple client accounts from one MCC, and cross-account portfolio bid strategies can optimize across multiple customer IDs. support.google.com You can also create automated rules at the manager-account level for bids, budgets, and campaign status. support.google.com

So I'd use this progression:

1–10 Google-only clients → Google MCC + native Smart Bidding
10+ clients / multiple platforms / lots of manual optimization → Optmyzr
Large agency with complex cross-channel infrastructure → Marin or Skai

Marin is particularly capable for agencies managing hundreds or thousands of accounts, with cross-client management, bulk editing, automation, and API/script capabilities. www.marinsoftware.com But that breadth is also why I'd hesitate to put a small, resource-constrained agency there.

Bottom line: If "limited resources" is the key constraint, Optmyzr gives you the best balance of automation, cross-client control, and operational simplicity. If you only run Google Ads, don't buy anything initially—squeeze as much as possible out of MCC + Smart Bidding first.

If you tell me roughly how many clients/accounts you manage, monthly ad spend, and whether you run Google only or Google + Meta/Microsoft, I can narrow this down to the most economical choice.

For an agency with limited resources, I’d pick Optmyzr—especially if you manage Google Ads across multiple clients.

My ranking

Why Optmyzr stands out: its Premium plan supports unlimited ad accounts subject to fair-use limits and includes automated bidding, rule-based automation, multi-account budget optimization, alerts, and cross-account reporting. It supports Google, Microsoft, Amazon, Meta, LinkedIn, and Yahoo! Japan. www.optmyzr.comhelp.optmyzr.com

That matters for a resource-constrained agency because you're not just getting a bid algorithm—you can build repeatable optimization rules across clients instead of having someone manually inspect every account.

The budget-conscious alternative

If you're Google Ads-only and have fewer than ~25 client accounts, I'd actually start with Google Ads Manager Accounts + Google's native Smart Bidding. Manager Accounts are free and let an agency manage multiple client accounts from one dashboard; Google also supports cross-account portfolio bid strategies for Smart Bidding. business.google.com

Then move to Optmyzr when you need things like:

• automated bid adjustments beyond native Smart Bidding
• standardized rules across dozens of accounts
• budget pacing and automatic budget changes
• cross-client monitoring/alerts
• Microsoft Ads/Amazon/Meta/LinkedIn alongside Google
• less manual account-by-account optimization

One important cost consideration: Optmyzr's current Essentials tier supports up to 25 accounts, while Premium supports unlimited accounts subject to fair use. www.optmyzr.comhelp.optmyzr.com

Bottom line:
<10 clients → Google Ads Manager + native automation is probably the lowest-cost approach.
10–50+ clients → Optmyzr is my recommendation.
Large agency / $500K+ monthly spend → evaluate enterprise platforms such as MarinOne or Skai.

If you tell me roughly how many client accounts you manage, monthly ad spend, and whether it's Google-only or Google + Microsoft/Meta, I can give you a much more specific recommendation and estimate the likely monthly software cost.

For a resource-constrained agency managing multiple client ad accounts, the best choice is usually Optmyzr — especially if your main need is automated bid management, rules, and scalable Google/Microsoft Ads optimization without hiring more PPC managers. www.keywordme.io

A practical ranking by agency situation:

My recommendation for a lean agency stack

1. Use Google Ads Manager Account (MCC) as your base

• Centralizes access to all client accounts
• Enables bulk management
• Costs nothing

www.keywordme.io

2. Add Optmyzr for automation
Set up:

• bid adjustment rules
• budget pacing alerts
• wasted spend detection
• search term cleanup
• performance-based campaign rules

This lets one strategist supervise many accounts instead of manually checking every campaign daily. www.keywordme.iowww.keywordme.io

3. Keep humans on strategy
Automate:

• "Lower bids when CPA exceeds target"
• "Increase bids when ROAS is strong"
• "Pause wasted keywords"
• "Alert when budgets are pacing incorrectly"

Do not fully automate:

• account strategy
• major budget reallocations
• landing page decisions
• client communication

If your agency is extremely lean (1–3 people)

I would avoid expensive enterprise platforms. A good setup would be:

• Google Ads MCC (free)
• Google Ads Scripts for simple recurring tasks
• Optmyzr when you reach roughly 10+ active accounts or the manual optimization workload becomes painful www.keywordme.iowww.keywordme.io

One caveat

If you manage mostly Meta Ads, TikTok, LinkedIn, Amazon, and Google together, a Google-focused PPC tool may not be enough. In that case, look at broader cross-channel platforms, though they tend to cost more and require more setup. www.keywordme.iopaceads.com

If you tell me:

1. number of client accounts,
2. monthly ad spend under management, and
3. platforms (Google only vs Google + Meta/etc.),

I can narrow it to the best-fit option.

For a resource-constrained agency managing multiple client accounts, I’d pick Optmyzr as the best overall option.

My ranking

Why Optmyzr wins

Optmyzr is specifically designed around agency workflows: multi-account dashboards, automated bid management, budget optimization, rules, alerts, reporting, and bulk actions. Its current Essentials plan supports up to 25 ad accounts, while Premium supports unlimited accounts subject to fair-use limits. help.optmyzr.com

More importantly for a lean team, you can automate the work around bidding rather than simply turning on Google's Smart Bidding:

• Set rules to automatically adjust bids based on performance.
• Automate recurring optimization tasks.
• Monitor multiple clients from a centralized dashboard.
• Set KPI alerts so you don't have to manually inspect every account.
• Manage Google, Microsoft, Amazon, Meta and LinkedIn advertising from the same platform. www.optmyzr.com

Optmyzr pricing and plans

The important caveat

If 90%+ of your agency's work is Google Ads, I'd actually start with Google Ads Manager Account (MCC) + Google's native Smart Bidding before paying for another platform.

Google lets you manage portfolio bid strategies at the manager-account level, allowing Smart Bidding strategies to be created, monitored and managed across accounts. support.google.com

That's essentially free, requires less infrastructure, and Google's auction-time bidding is already extremely sophisticated. support.google.com

The reason I'd graduate to Optmyzr is when you start thinking:

"I don't just want Google to automate bids—I want to automate the agency's entire optimization workflow."

That's where Optmyzr becomes much more compelling.

Bottom line:

• 1–10 mostly-Google clients: Google Smart Bidding + MCC first.
• 10–50 clients / multiple platforms / limited staff: Optmyzr.
• Large enterprise budgets and complex cross-channel requirements: consider MarinOne or Skai.

If you tell me roughly how many clients, monthly ad spend, and whether you're managing Google only or Google + Meta/Microsoft, I can narrow this down to the cheapest setup that will actually save your team time.

For a resource-constrained agency managing multiple client ad accounts, the best platform usually depends on your channel mix (Google Ads only vs. Google + Meta + Amazon), number of accounts, and how much automation you actually want. For most small-to-mid agencies, I would prioritize cost efficiency and operational leverage over enterprise-grade AI bidding.

Here’s how I’d rank the options:

www.keywordme.io

My recommendation by agency size

1–10 client accounts (limited budget):

• Start with Google Ads Manager Account (MCC) + Google Ads Scripts + Looker Studio reporting.
• Add a lightweight optimization tool only where manual work is hurting you.
• This gives you the highest ROI because you avoid paying a platform fee before your processes are mature. www.keywordme.io

10–50 client accounts:

• I’d lean toward Optmyzr.
• It’s designed around agency workflows: automated rules, bid adjustments, optimization suggestions, and managing multiple accounts from one place. www.keywordme.io

50+ accounts or multiple ad channels:

• Consider a broader platform, but only if the time savings justify the cost.
• Enterprise tools like Skai make more sense when you have large budgets and dedicated operations staff. www.keywordme.io

What I would avoid for a lean agency

• Fully AI “autopilot” bid managers that promise to replace PPC expertise. They can work well in narrow scenarios, but you often lose control over client-specific strategy.
• Spend-percentage pricing models if your agency manages large budgets but has thin margins.
• Platforms that solve reporting but not optimization—they save presentation time but don’t reduce the actual account management workload.

A practical lean stack

A cost-effective setup for many agencies:

1. Google Ads MCC — account access and bulk management
2. Optmyzr (when volume justifies it) — bid rules and optimization workflows
3. Looker Studio — automated client reporting
4. Google Ads Scripts — alerts, budget pacing, anomaly detection

If you tell me:

• number of client accounts,
• monthly managed ad spend,
• channels (Google, Meta, Amazon, Microsoft, etc.),
• and whether you need white-label reporting,

I can narrow this to the best fit and likely monthly cost.

For a resource-constrained agency managing multiple client ad accounts, I’d pick Optmyzr as the best overall fit.

Why Optmyzr

• Built for multi-account agency management. Its Portfolio system lets you group accounts across Google, Microsoft, Amazon, Meta, LinkedIn, and Yahoo Japan and manage them centrally. help.optmyzr.comhelp.optmyzr.com
• Strong automation without needing developers. You get automated bidding, rules, budget optimization, alerts, and other recurring optimizations. www.optmyzr.com
• Good fit for a small team. The Rule Engine and automated workflows can replace a lot of repetitive account-by-account work. www.optmyzr.com
• Scales reasonably well. The current Premium plan supports unlimited ad accounts subject to fair-use limits, while Essentials supports up to 25. help.optmyzr.comhelp.optmyzr.com
• Agency-oriented workflows. You can maintain separate client workspaces under one billing relationship with add-on accounts. help.optmyzr.com

The main alternative: Marin

Marin Software is arguably more powerful if you're operating at large-agency/enterprise scale. It supports unlimited client accounts, client groups, cross-brand reporting, custom scripts, and API-based automation. www.marinsoftware.com

But for an agency where cost, setup complexity, and team bandwidth matter, I'd generally favor Optmyzr. Marin's flexibility becomes more valuable when you have the scale and technical resources to exploit it.

My practical ranking

One important caveat: don't choose purely on the bidding algorithm. For a small agency, the bigger productivity gain usually comes from being able to apply consistent bid rules, budget pacing, anomaly alerts, and optimization workflows across dozens of accounts.

If you're managing, say, 10–30 client accounts with a small PPC team, Optmyzr is the one I'd evaluate first. Its current Essentials tier supports up to 25 accounts, while Premium adds daily automation and multi-account budget/reporting capabilities. help.optmyzr.comhelp.optmyzr.com