Eustace vs Factiverse AI
Eustace
eustace.appFactiverse AI
factiverse.aiSide by side
| Figure | Eustace | Factiverse AI |
|---|---|---|
| Price from | $15/mo | — |
| Free plan | Yes | — |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | Yes |
| iOS | — | Yes |
| Android | — | Yes |
| API | — | Yes |
| Plans published | 3 | 1 |
| Spec score · AI Fact-Checking Tools | 8.2 (#6) | 7.5 (#12) |
| Security | The privacy policy says data is encrypted in transit with TLS and at rest by infrastructure providers, production data access is restricted, and database rows are isolated per account. | The company says it has been independently security-tested at a NATO-certified centre. |
Plans
In their own words
Eustace
Eustace is a web-based fact-checking workspace for writers and researchers working with AI-assisted drafts. Users can paste text or import a URL, PDF, or Word file; scanned PDFs are processed with OCR. The service extracts candidate factual claims and displays their original quotes so users can select which to verify. Approved claims are checked against fresh web sources rather than the submitted document. Its ledger uses ten verdicts and three confidence levels, and the product says it signals uncertainty when evidence is thin or mixed. Users can inspect sources, attach private evidence, override a verdict with the change recorded, and export a Markdown report with claims, verdicts, confidence, and citations. Eustace says it does not sell user data or use documents to train AI models. The Free plan provides 25 lifetime verifications; Pro costs $19/month for 500 each month, with optional $0.05-per-claim overage turned off by default. Automated verdicts, confidence labels, and summaries can be wrong, incomplete, or out of date, so they are intended to support rather than replace editorial judgment.
Factiverse AI
Factiverse AI identifies and verifies claims in text, audio, and video, including failures in AI-generated output. Its automatic fact-checking supports text, URLs, documents, research papers, webpages, broadcasts, podcasts, and other listed media, with citation links provided. The Gather offering transcribes audio and video, extracts claims that can be checked, attributes them to speakers, and connects them to sources and timestamps. It can monitor YouTube, TikTok, Instagram, X, and additional platforms. Teams can choose verification sources through a session with Factiverse. The API integrates with platforms, applications, or CMS products and supports processing across more than 110 languages; API-call allocation follows the agreed plan. Factiverse also lists Telegram and ChatGPT plugins. The company says its models process millions of sentences across 114 languages. Customer material is not used to train models or shared, according to the company, with EU-hosted deployment standard and on-premise deployment available. It operates on web, iOS, Android, and through an API. Pricing is paid and available on request.