Change the app language and appearance

Switch AirBill between English and Dutch, or follow your device — and choose a light, dark, or system-matched look.

Both settings sit under Profile, in the preferences section: App language and Appearance.

App language

Choose English, Nederlands, or Use device language, which follows whatever your phone is set to.

Use device language is also the out-of-the-box default: a phone set to Dutch starts AirBill in Dutch, any other phone language starts it in English. Pick English or Nederlands and your choice is pinned — later phone-language changes won’t touch it.

This changes AirBill’s own interface — menus, buttons, labels — and the language Bill answers in: new replies come back in the language AirBill is set to.

The App language picker. “Use device language” follows your phone; English and Nederlands stay fixed.

Appearance

System matches your phone, so it switches to dark in the evening if your phone does. Light and Dark stay put whatever your phone does.

The Appearance picker: System follows your device, Light and Dark override it.

Common problems

AirBill is in the wrong language

Check whether App language is set to Use device language — if it is, AirBill is following your phone. Pick English or Nederlands directly instead.

The app keeps switching between light and dark

That’s System doing its job. Choose Light or Dark to fix it.