Zyphr

Private, encrypted messaging

Free

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.

Ratings & Reviews

  • 5.0
    out of 5
    1 Ratings

Some more polishes and bugs squashed. Thanks :)

Version 1.3

The developer, Sriram Govindan, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Linked to You

    The following data may be collected and linked to your identity:

    • Contact Info
    • User Content
    • Identifiers

Privacy practices may vary, for example, based on the features you use or your age. Learn More

Accessibility

The developer has not yet indicated which accessibility features this app supports. Learn More

Information

Seller
  • Sriram Govindan
Size
  • 65.5 MB
Category
  • Social Networking
Compatibility
Requires iOS 17.0 or later.
  • iPhone
    Requires iOS 17.0 or later.
  • iPad
    Requires iPadOS 17.0 or later.
Languages
  • English
Age Rating
18+
Copyright
  • © 2026 Sriram Govindan
  • Developer Website
  • Privacy Policy

    • More by Sriram Govindan

    You Might Also Like