Sentinella

Sentinella is a secure communication app designed for users who take privacy and device integrity seriously.

Calls use a protected session setup with encrypted signaling, device verification, and encrypted audio transport. Sensitive session data is processed temporarily and automatically removed after the call ends.

🔒 CORE FEATURES

• Secure voice calls — Real-time audio via WebRTC with encrypted transport between devices.

• Protected session setup — Signaling is secured with modern cryptography and session verification.

• Device integrity checks — Only supported and verified devices can access secure features.

• Background calling — Receive incoming calls even when the app is not active in the foreground.

• Automatic session cleanup — Temporary session data is automatically removed when a call ends.

• Additional security layers — Includes anti-tamper hardening, secure storage, and network protection.

🛡️ PRIVACY FIRST

Sentinella is built around data minimization. Wherever possible, sensitive data is not stored long-term. Temporary server-side data is used only for call setup, routing, and verification of secure sessions.

Cryptographic session keys are generated on the devices for secure connection establishment. This means Sentinella is designed to maximize the confidentiality of conversations.

⚙️ TECHNICAL SECURITY

• Encrypted signaling and session verification

• WebRTC for direct audio connections with encrypted transport

• Google Play Integrity API for device verification

• Secure on-device storage for app secrets

• Temporary backend processing for session coordination

• Automatic purge of handshake and session data

Sentinella is built for users who see privacy not as an option, but as a requirement.