End-to-end encrypted messaging and calling. Zero-knowledge architecture means we cannot read your messages—even if we wanted to.
Privacy built into every layer
Not an afterthought. Not a premium feature. Privacy is the foundation.
Messages encrypted with NaCl Box before leaving your device. Only your recipient can decrypt them.
Your encryption keys never touch our servers. We relay encrypted data—nothing more.
All messages stored locally in encrypted SQLite. Works offline, syncs when connected.
Voice and video calls with WebRTC encryption. Crystal clear, completely private.
We do not log who you talk to, when, or how often. Your patterns stay private.
Messages auto-delete from servers after 7 days. Local storage controlled by you.
Y001 is currently in active development for iOS, macOS, and Android. We will launch when it is ready—no compromises on security or user experience.
iOS
In Development
macOS
In Development
Android
In Development