Debt Book Support

Everything is stored locally on your device. There is no account and no server. If you enable iCloud, data syncs only to your own private iCloud — we never receive it.

When adding a transaction you can enable simple or compound interest with a rate and period. Interest recalculates automatically as you record payments.

Pro unlocks Cloud Backup, Export/Import, App Lock (PIN), and unlimited books. You can restore a previous purchase anytime from Settings → Subscription → Restore Purchases.

For security, the PIN cannot be recovered. Deleting and reinstalling the app resets the lock, but this also clears local data — restore from your iCloud/exported backup afterwards.

With Pro, use Settings → Cloud Backup, or Export Data to save a file you can Import on another device.

The app is available in English and Bengali, and supports multiple currencies (change it in Settings).