Threema
Developer:Threema AG
ONE-TIMEAGPL-3.0-only
Swiss encrypted messenger paid for once rather than by subscription, with accounts that need no phone number.
- Platforms
- Windows · macOS · Linux
- Tags
- e2ee · no-phone-number · swiss · companion-app
- Security
- No known warnings · checked 30 Jul 2026 · View scan ↗
- Added
- 28 Jul 2026
Links go to the official site. SoftHarbor hosts no downloads.