Updated 2026-06-14 · maintained by Unsourced
Unsourced and Otterly.ai start in a similar place. Both are affordable enough for an independent to begin: Otterly's entry plan is published at $29 a month, and Unsourced starts at £29. So this comparison is not about price. It is about what “visible in AI search” really means, and how far each tool goes to prove it.
Otterly.ai tracks how your brand appears across AI search, with plans based on the number of search prompts you monitor across four assistants. Knowing you were mentioned is a real signal and a good place to start. But a mention can be a passing reference, a linked citation, or the result of the model actually fetching your page, and those carry very different weight. Unsourced is built to tell them apart.
The difference here is not cost, it is depth of proof: whether a mention was earned by a real crawl, and whether you can prove it.
Otterly publishes simple, prompt-based plans from $29 up to $489 a month, which makes starting easy. Unsourced is in the same affordable bracket, from £29 with a free trial, but it answers a different question: not only how often AI mentions you, but whether the mention was earned by a real crawl of your page, which competitor took the citation when you missed it, and whether the fix you made actually moved it. If you want the evidence under the mention, that is where Unsourced bridges the gap.
Is Unsourced an Otterly.ai alternative?
Yes, both monitor whether AI assistants surface your site, at a similar entry price. The difference is depth: Unsourced adds verified crawler identity, live-crawl versus training-data evidence, a competitor gap report, and a measured re-check after you act, rather than mention tracking alone.
How much does Otterly.ai cost?
As published on its pricing page at the time of writing, Otterly.ai offers plans from $29 a month (Lite) up to $489 (Premium), based on the number of search prompts tracked. Unsourced starts at £29 a month with a 14-day free trial, and for that it covers seven assistants and adds verified crawler identity, live-crawl checks, the competitor gap report, measured lift, and exportable AI Visibility Audit and Evidence Report PDFs, not mention-tracking alone. Prices change, so check each site for current figures.
Can I see Unsourced's evidence before switching?
Yes. The free trial needs no card: verify your site, get a check right away and then every Monday, plus the Monday digest email, and review the real answers, crawler verifications and competitor gaps for your own domain before switching. On-demand checks any time are a Pro feature.
Unsourced shows which AI assistants cite you, who is really crawling your site, and whether your fixes actually move a citation.
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