Comparison ·
TangentFlow vs Surfeo.
The closest match: a visibility score across four assistants, a prioritised checklist, and generated articles. This page compares it with TangentFlow fairly, on public facts, so you can pick the right one.
Verdict first
Choose Surfeo for European SMBs and agencies that want done-for-you content in Spanish and English. Choose TangentFlow if you want the fixes, not just the numbers.
Both measure how AI assistants answer buyer questions. The difference is what happens after the report. TangentFlow drafts the pages and listings, publishes articles on a schedule, verifies whether each fix moved the answers, and gives you a claimable directory listing with crawler receipts. Surfeo covers part of that.
Side by side
The facts, as of the date below.
| TangentFlow | Surfeo | |
|---|---|---|
| Price | free scan; Pro $29/month for one business; Agency $199/month for eight | €39/month Starter (6 articles, 3 models, 40 prompts); €99/month Growth (16 articles, 4 models, 75 prompts, alerts) |
| Assistants | ChatGPT, Gemini, Perplexity, Claude, all with web search on | ChatGPT, Gemini, Perplexity, Claude (Claude on Growth) |
| Questions tracked | 20 generated buyer questions plus up to 10 of your own, per site | 40 to 75 prompts, by plan |
| Re-check cadence | weekly, every Monday, with flip emails | weekly automatic audits on Mondays, manual audits capped per month |
| Content and fixes | unlimited drafts (guides, comparison and alternatives pages, listings, FAQ, schema, llms.txt, social replies) and Autopilot articles published to your blog | auto-generated articles, FAQs and product descriptions, with monthly caps |
Sources: https://surfeo.ai/en and TangentFlow's pricing, checked 6 September 2026.
Surfeo strengths
What it does that we do not.
- GeoScore 0 to 100
- AI bots checker, llms.txt and schema tools
- EU-hosted, GDPR-native
- agency workspaces
TangentFlow strengths
What we do that it does not.
- mirror moment: what each assistant believes about you, fact by fact
- before-and-after proof pages
- claimable directory listing with crawler receipts
- eight local-business checks
- custom questions, CSV export, API key and MCP
- Google Analytics AI-referral card
- white-label reports on Agency
Watch-outs
Where Surfeo may fall short for small teams.
- article caps per month
- no mirror-moment claims audit
- no before-and-after proof pages
- no directory or crawler receipts
Other comparisons
See the rest.
Questions people ask
Is TangentFlow a replacement for Surfeo?+
For European SMBs and agencies that want done-for-you content in Spanish and English, Surfeo may be the better fit. TangentFlow is built for small businesses, SaaS and agencies that want the measurement and the fixes in one place, at a lower entry price.
Where do these facts come from?+
From Surfeo's public pricing and feature pages as read on 6 September 2026. Plans change; check their site before deciding.
Can I try TangentFlow without paying?+
Yes. The free scan asks ChatGPT 12 of your customers' questions and gives you the full report with no account.
Free, no account
See what ChatGPT tells your customers about you.
The free scan asks 12 of their questions, shows who gets recommended instead, and drafts the fixes. Results in about a minute.
Run a free scan