Archived App (Last seen on 24 Dec 2025)
This is an archived listing of the app previously available on the App Store.
Secure your private conversations with quantum-resistant encryption. This app uses direct device-to-device Bluetooth connections for key exchange, ensuring your messages are unreadable by any entity, now or in the future. Permanently erase chat history with a single tap for ultimate privacy control.
1.1
February 25, 2025
$1.99
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Chiffr uses encryption derived from photo entropy, employing a bit-by-bit unique stream cipher. This is designed to be unintelligible to quantum computers, offering advanced security beyond traditional internet-based key exchange methods.
Unlike many messaging apps, Chiffr leverages a direct Bluetooth connection between devices for key exchange. This eliminates the need for servers and ensures no backdoors exist.
Yes, Chiffr offers the option to permanently erase entire chat histories with a single tap. Once deleted, the cipher becomes undecodable, even by future quantum computers.
No, Chiffr collects zero metadata. This means your communication habits, contacts, and other personal information are not tracked or stored by the application.
Users can choose between AES or Stream Ciphers to protect their messages. The app also features its own secure encryption derived from photo entropy for maximum privacy.
Currently, Chiffr is only supported on iPhones. The app was released on February 25, 2025, and future platform support may be considered.
Chiffr was last updated on February 25, 2025, with version 1.1. This indicates recent development and ongoing support for the application.
Chiffr has an age rating of 4+. This suggests it is suitable for a wide range of users, with a focus on privacy and security features.