Change language and theme

Change the app's display language (follows device settings) and theme (light / dark).

Last updated: July 12, 2026

You can change the app's display language and its theme (appearance).

Language

The app's display language follows your device (phone) language settings. To change the language, change the app's language in your device settings. RAYS CARD supports Japanese, English, and Korean.

Theme

You can switch the theme inside the app.

Steps

  1. Open Settings → Theme in the app.
  2. Choose Light, Dark, or Follow system settings.

Choosing Follow system settings switches between light and dark automatically based on your device settings.