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Korus uses Google Sign-In for authentication. On the login screen, tap "Continue with Google" and select your Google account. An internet connection is required for first sign-in.

Yes. After signing in at least once, your songs, collections, and favorites are cached locally on your device. You can access and edit everything without an internet connection. Changes sync automatically when you reconnect.

Go to the "My Lyrics" tab and tap the + button. Enter a title, artist, and your lyrics. You can also add photos, a PDF, and links from the song's detail view.

Open a song, tap the three-dot menu (⋮) in the top right, and select "Add to Collection". You can create a new collection or add it to an existing one.

Each song supports up to 20 images (JPEG, PNG, or WebP), 1 PDF (up to 10 MB), and up to 5 links with custom display names.

Deleted songs are moved to the Trash, where they remain for 7 days. You can restore them at any time during this period. After 7 days, they are permanently removed.

Go to More > Trash. You'll see all your recently deleted songs and collections. Tap "Restore" on any item to bring it back to your library.

Yes. All songs, collections, and favorites you create are synced to your account via Supabase. Sign in on any Android device and your library will be there.

Yes. The "Library" tab contains a set of default Adventist hymns. Tap any song and use the import option to add a personal, editable copy to "My Lyrics".

Go to More > Settings and select your preferred theme: Light, Dark, or System (follows your device setting).

You can delete your account directly from the app by going to More > Account > Delete Account and following the confirmation steps. For detailed instructions or to request specific data removal, see the full guide below.