SimpleX Chat
8.0#1 in encrypted messaging appsFree planFree planAndroidiOSAPILinux
Visit
| Fact | SimpleX Chat | Threema |
|---|---|---|
| Encryption | The network uses end-to-end encryption with continuous post-quantum key exchange for messages and metadata. | Threema provides end-to-end encryption for messages, media, calls, profile pictures, group names and group-member lists. |
| Headquarters | London, United Kingdom | Pfäffikon SZ, Switzerland |
| Open source | Alternative client applications based on SimpleX Chat code must publish modifications under the AGPLv3 license. | The Threema apps are open source, with source repositories for Android, iOS, macOS, Windows, Linux and Threema Web. |
It suits people seeking messaging without network-assigned profile identifiers, with encrypted messaging, calls, and optional self-hosted servers. Developers can use its protocol SDKs for bots and integrations.
Threema suits people who want encrypted messaging without giving the service a phone number or email address. Its Work, Gateway, and Broadcast offerings also address organizations seeking messaging and administration tools.