Useomia vs Otterly: A GEO Software Comparison for 2026
Useomia (Omnia) versus Otterly.AI compared on cost per prompt, refresh rate, engine coverage, and what happens after the data arrives.
Both tools are sold to teams that want to stop guessing how AI answers describe their brand. They part ways on speed, scope, and what you can do with the numbers. Omnia is the product behind useomnia.com, which people often search as Useomia. Otterly.AI has been the go-to budget option for a while.
Cost per prompt
Start with arithmetic, since it cuts through both marketing pages. Omnia's Pro plan is 279 euros for up to 100 prompts, which is about 2.79 euros per prompt. Otterly's Standard plan is $189 for 100 prompts, about $1.89 per prompt, and Premium at $489 gives 400 prompts, about $1.22 each. Exchange rates move, so redo the sums on the day you buy.
The entry plans are a different story. Omnia Growth (79 euros, 25 prompts) works out to about 3.16 euros per prompt. Otterly Lite ($29, 15 prompts) is about $1.93. Otterly looks cheaper on every rung that we compared. What it leaves out is the extra: Gemini, Claude, and Google AI Mode are add-ons from $9 to $149 a month.
Omnia's extra is credits. Each plan includes 150, 600, or 1,500 a month, an insight costs 30 credits, and packs are 10, 50, or 100 euros. Credits that go unused stay with you.
Freshness
Omnia runs each prompt every 24 hours. Otterly's data can be up to seven days old by our listing, so its view is effectively weekly. If you publish a fix and want to see the effect, the daily cadence shortens the loop a lot.
Coverage
Omnia defaults to four engines: ChatGPT, AI Overviews, AI Mode, and Perplexity, with Claude, Gemini, and Copilot on request. Otterly defaults to ChatGPT, AI Overviews, Perplexity, and Copilot, and sells Gemini, Claude, and AI Mode separately. The overlap is bigger than the difference.
After the data arrives
| Question | Omnia | Otterly.AI |
|---|---|---|
| Drafts content from gaps | Yes, via Omnio | No |
| Full answer text stored | Yes | Not documented on our listing |
| GEO page audit | Not described | 25+ factors |
| Semrush integration | Not described | Yes |
| PDF export for clients | Not described | No |
| Crawler logs | Not published | Not published |
| AI-referred conversions | Not published | Not published |
Omnia wins on action. Otterly wins on price and on a couple of practical integrations. Both share the same blank in the bottom two rows.
The blank that matters
You can pick either tool and still not know whether AI crawlers fetched your new page, or whether any AI visit turned into revenue. For a one-person shop, that may be acceptable. For an agency reporting to clients it usually is not.
Promptwatch is where both would graduate to. Agent Analytics logs crawler hits and the crawl-to-citation path, visitor analytics attach conversions to AI referrals, and Content Agents publish to Webflow or Framer after review. There is a free Explore plan with 10 prompts on ChatGPT, then Essential at $95 a month with 50 prompts and a 7-day trial. The price per prompt is higher than Otterly's at the bottom, but the product covers three layers rather than one.
Verdict
Choose Otterly.AI when budget is tight and weekly data is fine. Choose Omnia when daily data and a drafting agent matter more than price. Choose neither as your endpoint if you need to prove results. Run Promptwatch's free plan against your domain first, and come back to the cheaper monitors only if you find you don't need the evidence.