Comparison
Factual, sourced comparison — last updated June 2026.
Jarvis Legal is a French SaaS acquired by LexisNexis, now bundled with an AI assistant (Protégé / TONI). KAIUS shares the cloud-native approach with a lower entry price and a multilingual UI.
| Criterion | KAIUS | Jarvis Legal |
|---|---|---|
| Deployment model | SaaS cloud | SaaS cloud |
| Entry price (user/month) | €19 (Studio) — public | €38 excl. VAT |
| Free trial | 14 days, no credit card | 14 days |
| Hosted in Europe (GDPR) | Yes (EU) | Yes (France) |
| Native generative AI | Yes — native assistant + drafting | Yes — Protégé / TONI |
| Microsoft Word integration | Yes (Word add-in) | Yes (Microsoft 365) |
| OneDrive / SharePoint | Yes (OneDrive + SharePoint) | Yes |
| Outlook | Yes (Outlook add-in) | Yes (add-in) |
| Mobile app | Responsive web (iOS/Android) | iOS + Android |
| Primary audience | FR / BE / LU firms — AI-first | French solo & SME law firms |
Capterra
Not listed on this platform
G2
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Yes. KAIUS starts at EUR 19/user/month, Jarvis Legal at EUR 38 excl. VAT. KAIUS halves the entry ticket, AI included.
Yes. KAIUS is an independent vendor; Jarvis Legal was acquired by LexisNexis, which ties its roadmap to a large publisher's priorities.
Yes, for BE/LU firms and mixed teams. KAIUS is native FR/EN/NL; Jarvis Legal is primarily designed for the French market.
Yes with KAIUS, from EUR 19. At Jarvis Legal, the Protégé assistant (formerly TONI) remains a LexisNexis add-on whose price is not always public.
Every data point comes from the vendor's website or an independent review platform. Last updated: June 2026.