Nocta Messenger

Nocta is a private, end-to-end encrypted messenger for people who value quiet and control over their own data.
Messages, calls, and attachments are protected with end-to-end encryption (X3DH and Double Ratchet protocols). The server only ever sees encrypted traffic — it cannot read your conversations.
FEATURES
• One-to-one and group chats with end-to-end encryption
• Voice and video calls
• Voice messages, photos, videos, and files
• Disappearing messages with a configurable timer
• Safety numbers to verify who you're talking to
• Dark theme and fine-grained appearance settings
• English, Русский, Polski
PRIVACY AT THE CORE
• Sign up without a phone number or email — your profile is created locally on your device
• Phone-number discovery is optional and up to you; numbers are protected cryptographically
• Minimal data on the server: only what's needed to deliver your messages
• Block unwanted contacts
• Screenshot protection
• Delete your account entirely from within the app
Nocta is in beta. We publish signed builds, document our threat model, and minimize the data visible to the server. The app is under active development.