Backend
The public servers, your own Esplora endpoint or your own Electrum server.
Certificates
Trust a self-signed certificate by its fingerprint, and decide when it changes.
Tor
Reach a .onion backend through the built-in Tor client or the one on your device.
Units and fiat
BTC or sats, and the fiat value from the price source you pick.
Appearance
Light theme, dark theme or the theme of your system.
App lock
A PIN or a password, with biometrics and the calculator disguise on Android.
Backup and sync
An encrypted backup file or an animated QR code to move your wallets.
Notifications
A notification when a transaction arrives and when it confirms, and home-screen widgets on Android.