Compared 19 August 2026
RankX AI vs Otterly.ai
RankX AI and Otterly.ai are the two cheapest ways into AI search monitoring, and they draw the line on what costs extra differently.
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The short answer
How RankX AI and Otterly.ai differ, in one screen.
RankX AI and Otterly.ai both track brand mentions in AI search. Otterly.ai starts at $29 a month for four engines, with Claude, Gemini and Google AI Mode sold as add-ons. RankX AI starts at $49 a month with six surfaces included, plus Google rank tracking and site audits.
Choose RankX AI if
Claude, Gemini or Grok matter to you, because all three are included rather than sold as add-ons, and you want Google rank tracking, site audits and content publishing on the same plan instead of a separate SEO tool beside your AI tracker.
Choose Otterly.ai if
Budget is the binding constraint or your team is large. Otterly.ai is the cheapest entry in the category, every tier carries unlimited team members where RankX AI Starter stops at three, and it tracks Microsoft Copilot, which RankX AI does not track at any price.
The full price
What does Otterly.ai cost, and what does RankX AI cost?
RankX AI starts at $49 a month with 3 seats. Otterly.ai's published entry tier is $29/month, or $25/month billed annually. The tiers below are theirs, in their own words.
| Tier | Price | What it covers |
|---|---|---|
| Lite | $29 a month, or $25 billed annually | 15 search prompts and 1,000 GEO URL audits a month |
| Standard | $189 a month | 100 search prompts and 5,000 GEO URL audits a month, with API and MCP access; an extra 100 prompts is $99 a month |
| Premium | $489 a month | 400 search prompts and 10,000 GEO URL audits a month, with API and MCP access; an extra 100 prompts is $99 a month |
| Enterprise | From $1,000 a month | Published as a from price only |
Every tier includes the same four AI engines, ChatGPT, Google AI Overviews, Perplexity and Microsoft Copilot, with unlimited team members, and annual billing takes roughly 15 percent off each price.
The line to read carefully is the engine list. Claude, Gemini and Google AI Mode are not in it: they are add-ons, published between $9 and $439 a month depending on the tier and the engine, so the $29 headline and our $49 one are not covering the same ground.
The head to head
Which product wins on which criterion?
Every figure is read from Otterly.ai's own published pages on 19 August 2026. Rows that favour them are marked as such, because a table we win outright would not be worth reading.
| Criterion | RankX AI | Otterly.ai | Favours |
|---|---|---|---|
| Entry price | $49 a month | $29 a month, or $25 billed annually | Otterly.ai |
| AI surfaces included at the entry tier | Six, all included | Four: ChatGPT, Google AI Overviews, Perplexity and Microsoft Copilot | RankX AI |
| Claude, Gemini and Google AI Mode | Claude and Gemini included. Google AI Mode not tracked | Add-ons from $9 to $439 a month | RankX AI |
| Microsoft Copilot | Not tracked | Included on every tier | Otterly.ai |
| Seats at the entry tier | 3 | Unlimited team members | Otterly.ai |
| Tracked prompts at the entry tier | 25 per project | 15 | RankX AI |
| Google rank tracking | 100 to 1,000 keywords by plan | Not offered | RankX AI |
| Technical site audit | Full crawl with JavaScript rendering from Growth | GEO URL audits, 1,000 a month on Lite | RankX AI |
| Content briefs and WordPress publishing | Included on every plan | Not offered | RankX AI |
What those rows mean in practice
Claude and Gemini are included, not extras
RankX AI tracks ChatGPT, Claude, Gemini, Grok and Perplexity in the nightly run, plus Google AI Overviews, on every plan including the $49 Starter. Otterly.ai includes four engines and sells Claude, Gemini and Google AI Mode as add-ons published from $9 to $439 a month. Compare the coverage you actually need, not the headline price.
A real site audit, not a URL-level GEO check
Otterly.ai publishes GEO URL audits, capped at 1,000 URLs a month on Lite. RankX AI runs a full technical site audit with JavaScript rendering from the Growth plan up, which is a different job: one scores pages for AI readiness, the other finds the crawl, index and performance faults underneath them.
The SEO half is included rather than absent
Otterly.ai is an AI search monitor and does not track Google rankings, research keywords or publish content. RankX AI does all three on the same plan, so a team replacing one subscription is not left buying a second tool for the work the first one surfaced.
The honest part
Where Otterly.ai is the better choice.
No product wins every comparison, and a page claiming otherwise is not worth trusting. These are the cases where we would tell you to buy Otterly.ai.
Otterly.ai is cheaper, and unlimited seats is not a small thing
At $29 a month, or $25 billed annually, it is the cheapest published entry in the category, and every tier carries unlimited team members. RankX AI's Starter is $49 with three seats and does not reach unlimited seats until Agency Scale at $599. For a large team on a small budget, Otterly.ai wins outright.
Microsoft Copilot is included on every Otterly tier
RankX AI does not track Microsoft Copilot on any plan. Otterly.ai includes it at $29. If Copilot is where your buyers ask their questions, no amount of the rest of this page should persuade you otherwise.
ChatGPT Ads tracking, and API access from Standard
Otterly.ai publishes ChatGPT Ads tracking on all tiers and API, MCP and Agent Analytics access from Standard upward. RankX AI publishes an MCP server with 66 tools, but does not track ChatGPT Ads at all, which is a distinct surface we have no answer for.
Compared against Otterly.ai’s published pages on 19 August 2026. Products in this category change weekly, so check the source before relying on a figure.
Sources
Questions
Otterly.ai, answered
The questions people ask before switching, including the ones whose honest answer is that Otterly.ai is the better buy.
Is Otterly.ai cheaper than RankX AI?
Yes, at the entry tier. Otterly.ai Lite is $29 a month against RankX AI Starter at $49, and Otterly.ai includes unlimited team members where Starter includes three seats. The comparison changes if you need Claude or Gemini, which Otterly.ai sells as add-ons published from $9 to $439 a month and RankX AI includes at no extra cost.
Which AI engines does Otterly.ai track?
Four on every tier: ChatGPT, Google AI Overviews, Perplexity and Microsoft Copilot. Claude, Gemini and Google AI Mode are available as paid add-ons. RankX AI tracks six surfaces on every plan: ChatGPT, Claude, Gemini, Grok, Perplexity and Google AI Overviews, and does not track Microsoft Copilot or Google AI Mode.
Does Otterly.ai do SEO as well as AI tracking?
No. Otterly.ai offers GEO URL audits, which score pages for AI readiness, but not Google rank tracking, keyword research or content publishing. RankX AI includes all of those on every plan, which is the main reason to pay $49 rather than $29.
How many prompts do I get on each?
Otterly.ai publishes 15 search prompts on Lite, 100 on Standard and 400 on Premium, with an extra 100 available at $99 a month. RankX AI includes 25 prompts per project on Starter, 50 on Growth and 100 on Pro, checked nightly across all five assistants.
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