Comparison
Fenn vs Otterly.AI
Otterly.AI monitors how AI search surfaces mention brands. Fenn covers the same measurement question, then adds the two things a monitor cannot do: an MCP server so your agent can ask the questions, and an approved pull request that implements the fix.
Otterly.AI is a product in the AI search monitoring category. Check them for yourself at otterly.ai.
We only make definite claims about our own product. Where we have not verified a competitor capability from that vendor’s own public documentation, this table says "Not published" rather than claiming they lack it — an absence of published information is not evidence of an absent feature. No competitor logo, screenshot or copy appears on this page. If something here is out of date, email us and we will correct it within one business day.
Capability by capability.
The two rows at the top are the ones the whole product hangs on. Everything below is something you can go and check on both sites in ten minutes.
| Capability | Fenn | Otterly.AI |
|---|---|---|
| Works via MCP — your agent can drive itIf the tool only lives behind a login, the answer to every question costs you a context switch. | Yes A hosted MCP server with 15 tools. Add it as a custom connector in Claude or ChatGPT and ask questions in plain language. | Not published |
| Opens the pull request that fixes what it foundA list of problems is not a fix. Someone still has to write the change. | Yes draft_fix produces a real diff against your repo; execute_fix opens the PR after a human approves. You review and merge as normal. | Not published |
| Answer engines trackedCoverage gaps are invisible — you cannot see the engine you are not measuring. | Yes ChatGPT, Claude, Gemini, Perplexity, Grok and Google AI Overviews, on every paid plan. No engine is an add-on. | Not published |
| Daily tracking on the entry paid planWeekly sampling hides the week you lost. | Yes Daily runs from $29/month. Free plan runs weekly on one engine. | Not published |
| Free plan that is not a trialYou should be able to see your own numbers before a card comes out. | Yes 1 domain, 5 prompts on 1 engine weekly, 10 keywords, MCP enabled. Free indefinitely. | Not published |
| Published entry priceA price behind a demo call is a price you cannot compare. | Yes $29/month, listed on the pricing page, self-serve, no call required. | Not published |
| Classic rank tracking in the same productAnswer visibility and blue-link rank move differently; seeing both in one place is where the insight is. | Yes Keyword rank plus AI Overview presence, side by side, from 10 keywords on the free plan. | Not published |
| Technical + content audit tied to visibilityMost citation failures are boring: thin answers, missing schema, throat-clearing intros. | Yes audit_issues returns issues with evidence and a URL, each linked to the prompts it is costing you. | Not published |
| Human approval gate on anything that writesAn agent with commit rights and no gate is a bad afternoon waiting to happen. | Yes execute_fix and request_publish return pending_approval and never execute on call. A person approves in the dashboard. | Not published |
| White-label / multi-client workspacesAgencies need their own branding on a client report. | Yes 25 client workspaces, white-label reports and per-client API keys on the $199 Agency plan. | Not published |
| Export your raw dataYour measurement history should not be hostage to your subscription. | Yes CSV and JSON export of every run, plus the same data through the MCP read tools. | Not published |
“Not published” means exactly that: we could not verify the capability from Otterly.AI’s own public documentation at the time of writing. It is not a claim that the capability is missing. If you work at Otterly.AI and want a row corrected, email us and we will update it within one business day.
When Otterly.AI may fit you better
If you only need lightweight monitoring of a handful of prompts and never intend to change the site off the back of it, a monitoring-only tool is less product than you need to learn.
When Fenn is the right call
- You want your agent to answer visibility questions in chat, not another dashboard to check.
- You have a repo, and you want the fix implemented rather than described.
- You want every engine on the entry plan at $29, not engines sold as add-ons.
- You want to see your own numbers before a card comes out.
Ten minutes on the free plan beats a comparison table.
Point Fenn at your own domain, run five prompts, and see what the engines actually say about you. No card, no call, no expiry.