Comparison
FactSentry vs Otterly
Otterly and FactSentry both serve the under-$99 tier. Otterly focuses on brand mention tracking across AI engines; FactSentry focuses on ground-truth-verified audits with per-fact evidence and a fix brief. They can be complementary — monitoring vs. diagnosis + fix.
Last updated: April 16, 2026 · Reviewed quarterly
Side-by-side comparison
Every row cites the public source we used. If something looks wrong or out of date, let us know.
Tiered plans per vendor site; check current pricing at source.
Source: otterly.ai
$19/month. Free audit without a card.
Brand mention tracking and share-of-voice across AI engines.
Source: otterly.ai
Per-fact verdicts (accurate / inaccuracy / gap) with source evidence and a fix brief.
Signup required per vendor site.
Yes. Audit runs from the homepage, no email needed.
Not offered.
Yes. Every audit has a public URL with schema + evidence.
Who should choose what
Choose Otterly if
- You want lightweight brand-mention tracking and alerts across AI engines.
- You already have a fix workflow and just need the signal.
Choose FactSentry if
- You want evidence-backed audits, not just mention counts.
- You need a fix brief with the specific pages to publish.
- You want a public shareable audit page for every scan.
Methodology
We compare public, verifiable facts only. Every row cites the public page we used (pricing, homepage, or docs). Rows without a cited source are conservative statements about product scope that can be verified by visiting the vendor's site.
We don't make unverifiable claims about competitor feature depth, support quality, or customer success. Our comparison focuses on dimensions a buyer can verify in under five minutes: price, sales motion, free tier, engines covered, and multi-brand support.
Data was gathered on April 16, 2026 from the sources below. We review this page quarterly. If Otterly updates their pricing or positioning, this page may lag by up to 90 days — ping us if you spot drift.
Sources checked (April 16, 2026)
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