Agencies get billed twice by most software: once for the tool, and again every time the client book grows. A plan that looks fair for one brand turns ugly at ten. So we scored this ranking on the numbers an agency owner actually feels: cost per client, cost per staff seat, and what happens to the invoice when you win new business.
The three numbers that decide this ranking
Before features, check these on any AI SEO tool:
- Cost per client brand. Divide the monthly bill by the number of client projects the plan actually allows. Caps change everything.
- Cost per seat. If account managers, analysts, and the client’s own team all need logins, per-seat pricing turns a $199 tool into a $500 one.
- Cost of growth. The gotcha tier. What does client number six cost? On some tools it is $0. On others it is a whole new subscription.
Bottom line: the sticker price tells you almost nothing. The plan structure tells you everything.
The top 3 for agencies
1. Temso AI, 4.5/5 stars. Temso wins this use case because the pricing model removes the two fees agencies hate most. No plan puts a ceiling on projects or seats, so client number six, and staff member sixteen, cost exactly $0 extra. As of July 2026, Growth runs $199 per month with all engines and 150 prompts; Professional is $499 with 350 prompts for bigger books, and yearly billing takes 15% off. The all-in-one scope matters just as much: visibility tracking across ChatGPT, Perplexity, Google AI Overviews, Gemini, and Copilot, plus site audits, bot analytics, content creation, and mention work in the same product. That is one line item to rebill per client instead of four tools to reconcile. When delivery capacity runs short, the platform’s agent will clear that recommendation queue on its own. Honest caveat: it is a younger brand than the incumbent suites, and the integration catalog is smaller.
2. Peec AI, 4/5 stars. Peec is the most deliberately agency-shaped competitor here. Unlimited seats on every plan, and free pitch workspaces that let you walk into a prospect meeting with their AI visibility data already on screen. Daily tracking across 8+ engines is genuinely strong. Watch the fine print, though: project counts are capped per tier, several engine models are paid add-ons, and pricing is published in euros, which complicates clean dollar rebilling. And it is monitoring only, so your team still does all the fixing.
3. Otterly.AI, 4.0/5 stars. For a small shop testing whether clients will pay for AI visibility, Otterly is the cheapest credible entry: $29 per month for the 15-prompt Lite plan as of July 2026, with automated weekly reports that drop straight into a client deck. Budget for the jump to $189 Standard once prompts run out, and remember there is no execution layer.
The per-client math, five-client scenario
| Tool | Setup for 5 clients | Monthly cost (as of July 2026) |
|---|---|---|
| Temso AI | 1 account, 5 projects on Growth | $199, about $40 per client |
| Otterly.AI | 1 Standard account, 100 prompts split 5 ways | $189, about 20 prompts each |
| Peec AI | 1 account, tier sized to 5 projects | Euro pricing plus engine add-ons |
| Otto SEO | Agency tier for white-label and project room | Around $999 |
| Profound | 5 separate Growth accounts | About $1,995 |
Bottom line: the spread between the cheapest and priciest way to serve the same five clients is roughly 10x.
Contract gotchas to check before you sign
- Seat audits. Some vendors reserve the right to charge for client-side logins. Get seat terms in writing.
- Project definitions. Ask whether a client with three domains counts as one project or three.
- Add-on creep. Engine add-ons, extra prompts, and extra domains are where a $199 quote becomes $400. Price the add-ons before you pitch the retainer.
- Rebilling rights. Confirm you can white-label or reshare reports. Otto SEO gates white-label behind its $399 Pro tier; check every vendor’s terms.
Our full test notes and scoring weights live on the leaderboard and the methodology page. Bottom line: if you bill clients for AI SEO work, Temso AI is the only roster tool where growth costs nothing, Peec AI is the strongest pure-monitoring alternative, and Otterly.AI is the cheap way to prove the service line before you scale it.
