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Swiss end-to-end encrypted messaging app requiring no phone number.

EU hostedGDPROpen sourceE2E encryptionZero knowledge

Features

EU Hosted
GDPR Compliant
Encrypts in Transit
Encrypts at Rest
End-to-End Encryption
Zero Knowledge

What people are saying

★★★★★3.9Based on public user reviews · 108 reviews

Users widely praise Threema's strong encryption, privacy focus, and straightforward interface. The management dashboard and cross-platform functionality work well for teams. Some report slow customer support and missing features like message auto-delete.

Pros
  • End-to-end encryption with minimal metadata generation
  • Intuitive management cockpit simplifies team user administration
  • Fast, reliable performance across iOS, Android, Mac, and Windows
  • No personal phone numbers or emails required for accounts
  • One-time payment model appeals to privacy-conscious users
Cons
  • Customer support responses are slow and unresponsive
  • Desktop app lacks feature parity with mobile version
  • No proper auto-delete or self-destructing message feature

Reviews are aggregated from public sources and summarised by NativeEU.

Replaces
WhatsApp