Get Cyfero
Secure communication on every device. Download the app for your platform or use the web client directly in your browser.
Android
Android 7.0 (API 24) or higher. Includes SMS management, call history, and secure messaging.
iOS
iOS 16 or higher. Secure messaging and encrypted voice and video calls.
Full messaging + calling in Safari today; native app pending App Store review.
Web
Any modern browser. No installation required. Full messaging and calling.
web.cyfero.me
Installing the APK
Cyfero is distributed directly from this site so it remains available even
if the Play Store removes it. To install, you may need to enable Install unknown apps for your browser in Android Settings →
Apps → Special access. The APK is signed; you can verify the signature
with apksigner verify --print-certs.
System Requirements
Android
- Android 7.0 (Nougat) or higher
- Compatible with GrapheneOS
- ARM64, ARMv7, or x86_64 processor
- 50 MB available storage
iOS
- iOS 16.0 or higher
- iPhone, iPad, or iPod touch
- 50 MB available storage
Web
- Chrome, Firefox, Safari, or Edge
- WebRTC support required for calls
- JavaScript enabled