BlindPost is a modern messaging app with end-to-end encryption built in.
CHAT AND CALL
• Private and group chats
• Voice and video calls (WebRTC)
• Share photos, videos, files, and voice messages
• Message reactions, replies, and quotes
• Link previews with rich metadata
• Polls in group chats
• Contact card sharing
• Forward messages (text, image, video, file, contact)
END-TO-END ENCRYPTED
• Every message, call, and file is encrypted on your device before sending
• Uses industry-standard cryptography (XChaCha20-Poly1305 and Ed25519)
• Your private keys are stored only on your device
• Your Ed25519 public key is your user ID — no phone number or email required to sign up
• Zero-knowledge server architecture — servers route encrypted data they cannot read
SECURITY
• PIN lock and biometric authentication (Face ID / fingerprint)
• Encrypted device backup via 12-word recovery phrase
• Disappearing messages option for conversations you want to keep ephemeral
• Open architecture with distributed server nodes for reliability
NO TRACKING
• No ads
• No third-party analytics SDKs
AVAILABLE IN 6 LANGUAGES
English, 中文, 繁體中文, 日本語, 한국어, Español
BlindPost is built for everyday private conversations with the people who matter to you.
Ratings & Reviews
5.0
out of 5
1 Ratings
What's new in 1.3.3:
• Group scheduled expiry: owners and admins can set a chat-wide message expiry in group settings, and every member's message follows it automatically.
• Poll deadlines now respect the chat's scheduled expiry: the picker won't let you choose a deadline longer than the chat will live.
• HEIC photos can now be sent (previously failed with a "format not supported" message).
• Account migration shows a "Cleaning up local data…" step at the end so the app no longer looks frozen on accounts with lots of media.
• Reading old group history is no longer interrupted by jumps to the latest message when new activity arrives.
• Group member counts and admin badges refresh promptly after joins, leaves, and approvals.
• "Create chat" page now shows the full contacts list instead of being capped to half the screen.
• Stability and privacy improvements.
Full changelog: blindpost.app/releases/
Version 1.3.3
The developer, MyProxy Technologies LLC, 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 Not Collected
The developer does not collect any data from this app.
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
MyProxy Technologies LLC
Size
182.6 MB
Category
Social Networking
Compatibility
Requires iOS 15.5 or later.
iPhone Requires iOS 15.5 or later.
iPad Requires iPadOS 15.5 or later.
iPod touch Requires iOS 15.5 or later.
Mac Requires macOS 12.4 or later and a Mac with Apple M1 chip or later.