Silent Phone vs Spok Secure Messaging
| Silent Phone | Spok Secure Messaging | |
|---|---|---|
| Platforms | Android, iOS, Web | Android, iOS, macOS, Windows |
| End-to-end encryption | default | |
| Guest access | Yes | |
| File sharing | Yes | Yes |
| SSO support | Yes | |
| Mobile apps | both | both |
| Audit logs | Yes |
Listed together in Best Secure Team Chat Software