SimpleX Chat
8.0#1 in encrypted messaging appsFree planFree planAndroidiOSAPILinux
Visit| Fact | SimpleX Chat | Speek! |
|---|---|---|
| Encryption | The network uses end-to-end encryption with continuous post-quantum key exchange for messages and metadata. | The README says messages and file transfers are end-to-end encrypted and routed via Tor. |
| Open source | Alternative client applications based on SimpleX Chat code must publish modifications under the AGPLv3 license. | The FAQ says Speek! is open source and links to its code on GitHub. |
No prices published.
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.
You want what its maker publishes above — check its page for the details.