Device & Browser Compatibility
How iCallU.online works across browsers, devices, and encryption capabilities.
Modern Browser Support
iCallU is built for modern browsers with full WebRTC support and always end-to-end encryption (E2EE) for audio and video when supported by the device. Text chat is always E2EE.
- iOS 15.4+ (Safari): Fully supported on iPhone and iPad. Required for stable video and E2EE.
- Android 10+ (Chrome / Samsung Internet): Optimized for Chrome on Android 11+; Samsung Browser also supported.
- Windows 10+ (Chrome, Edge): Full support for video, audio, chat, and E2EE.
- macOS 12+ (Safari, Chrome): Both browsers work well. Safari uses a different internal encryption path.
Compatibility Mode (Fallback)
If your browser does not support E2EE encryption APIs, the call will still connect securely using standard WebRTC protections.
In this case:
- Audio and video are still encrypted in transit (DTLS-SRTP).
- Media may not be E2EE at the application layer.
- Text chat remains fully end-to-end encrypted .
Compatibility Mode ensures calls still work on older or restricted environments without silently failing.
Privacy-first by design
Our app is engineered to not only meet but exceed the highest standards of data protection and compliance, including GDPR and HIPAA-aligned best practices. Every call and message is secured with end-to-end encryption (E2EE), ensuring that only the intended parties can access the content - not even our servers can see it. Powered by modern cryptography (X25519, AES-GCM, HKDF), our zero-knowledge architecture guarantees that your data is never stored, shared, or exposed. We track no metadata, retain no messages, and embed no third-party analytics. Temporary media and encrypted session keys are automatically destroyed at the end of each session. By combining peer-to-peer (P2P) infrastructure, ephemeral tokens, and strict data minimization, we deliver a privacy-first experience that lets you communicate freely-with confidence and no compromise.