** NOTE: This app is NOT used by the BitBox02 hardware wallet, which has its own onboard screen. **

This app works only with the now discontinued BitBox01 device.
Check out the website for more details: https://shiftcrypto.ch/bitbox01/.

This app allows using a mobile phone as a large screen for securely verifying transactions and receiving addresses created by the Digital Bitbox (BitBox01) hardware wallet.

The code is open source and available here: https://github.com/digitalbitbox/2FA-app.