Pyxis
Pyxis is a private photo vault for iPhone and iPad built around one idea: nobody should be able to tell what is in it, or even whether it exists. Photos, videos, files and notes are encrypted on the device with AES-256 before they are stored, using keys derived from a pattern the user draws. Each pattern opens its own vault and the app never lists them, so there is nothing to give away how many exist. A duress pattern opens a decoy vault and erases the rest, encrypted iCloud backup keeps a copy only the user can read, and vaults can be shared with a 9-word phrase, an expiry date and an open limit. It ships in 44 languages.
What we built
Project highlights
Hidden, pattern-locked vaults
Each pattern opens its own vault and the app never shows a list, so nobody can tell how many vaults exist — or whether there are any.
Encrypted on the device
Every file, thumbnail and file name is encrypted with AES-256-GCM before it is stored. Keys come from the pattern and never leave the phone.
Duress pattern
A second pattern opens a decoy vault and quietly erases every other vault — built for the moment someone forces you to unlock.
Zero-knowledge sync and sharing
iCloud backup, iPhone–iPad sync and shared vaults all move only encrypted data, so neither Apple nor Kavvara can read it.
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