Zyphr

Zyphr is a private messenger built around one idea: your conversations are yours. Messages and calls are end-to-end encrypted, video calls are secure video calls, and the server is never able to read them. PRIVATE BY DESIGN - End-to-end encrypted 1:1 chats (Signal Protocol) and group chats (MLS, the IETF standard for group encryption). - Encrypted voice and video calls (WebRTC / DTLS-SRTP) that connect directly between devices whenever they can. - Sign up with just an email, no phone number. Your email is stored only as an irreversible hash, never in plain text. Or sign in with Apple or Google. - The server relays only sealed ciphertext and helps your devices find each other. It holds no message content and no decryption keys. MESSAGING THAT RESPECTS YOU - Photos, videos, files and voice messages, each encrypted with its own key. - Disappearing messages, delayed send, and view-once secure media. - Read receipts and typing indicators you can turn off, in both directions. - On-device voice-message transcription (audio never leaves your phone). CALLS - One-tap voice and video, with a native call experience. - Call history with in-chat call records. YOURS TO CONTROL - Two-step verification and passkey sign-in. - Block and report, with username and impersonation filtering. - Screenshot protection across the app including video calls (secure video calls). - Delete your account and wipe your data anytime. Zyphr is ad-free and tracker-free.