Built for Passport.
Passport Prime is Human Authority Hardware powered by KeyOS, Foundation’s Rust microkernel OS. It moves secure review and approval for high-stakes actions onto dedicated hardware, outside ordinary phones, laptops, browsers, and cloud accounts.
This is an early showcase of apps coming to Passport as we prepare the full SDK and app store.
The apps
Utility
Calculator
A basic-and-scientific calculator that runs natively on Passport Prime, showing KeyOS as a general-purpose app platform rather than a Bitcoin-only signer.
Image Viewer
Photos and animated GIFs decoded entirely on-device, strictly read-only. Nothing is written, nothing leaves the device.
PDF Viewer
Read PDFs rendered entirely on-device, strictly read-only.
Text Editor
Browse your Passport Prime’s storage and edit text files, fully offline.
Build your own for Passport Prime
Every app here is a KeyOS application (Rust plus Slint) talking to a host over WebUSB, QuantumLink Bluetooth, WebSocket, or animated QR. The same release-with-approval primitive is open to third-party developers.