Care Thread vs Crypho

Care Thread has no write-up on Specifiction yet; its figures are above.

Crypho is an end-to-end encrypted communications service for chat, file sharing, and video conferencing. Persistent group chats include a shared file folder and are available only to invited members. The service supports encrypted calls and video calls, guest access, and apps for Android, iOS, macOS, Windows, and the web. It uses TOTP two-factor authentication, with tokens available by SMS or mobile app, and offers Norwegian BankID identification for company and customer processes. Crypho lists authenticated AES with 256-bit keys in CCM mode, El-Gamal elliptic-curve 384-bit encryption, and scrypt among its cryptographic methods. The company says user data is hosted on dedicated servers in Norway, without cloud services. The free plan is for personal use, limited to one group and files up to 3 MB. Pro costs €379 a month and allows up to 25 team members, 100 groups, and files up to 100 MB. Enterprise pricing is available by contacting Crypho; listed features include files up to 2 GB, unlimited groups, and an optional on-premise server.