A little help,
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Tap the + button on the main screen. Enter a card name, add a card number if you need one, choose a color, and tap Save. A name is enough to create a card.

While adding or editing a card, tap Add More Information. Give the new row a label and enter its value. You can add expiry dates, phone numbers, notes, or other details. Use a new row for each item you want to keep.

Yes. Cardimo accepts letters, numbers, spaces, and symbols in the card number field. It is not limited to bank card numbers.

Touch and hold a card on the main screen, then drag it to its new position. Put frequently used cards near the top.

Open the card, then use the edit action to change its details. Use Delete Card to remove that card. Deleting a card cannot be undone in Cardimo.

Open Settings in Cardimo and enable the unlock switch in the Security section. Complete the system authentication to turn it on. The available method depends on your device, and the system can also use your device passcode.

With app lock enabled, authentication is required when the app starts a new session and when you return after at least one hour in the background. A short trip to another app after unlocking does not trigger another verification. If you cancel authentication, Cardimo remains on its lock screen and you can tap the unlock button to try again.

Follow the system authentication prompt to retry or use your device passcode when offered. Cardimo does not have a separate account password and cannot reset your device's passcode.

Copied card numbers are kept on the current device's clipboard and set to expire after one minute. When you choose to share, the card information goes to the app or recipient you select. Copies saved by another app are controlled by that app.

No. Card records are saved on this device only and excluded from system backups. Cardimo does not provide cross-device sync, a cloud backup, or an import and restore service.

No. Cardimo does not keep a server or cloud copy of your card records. Deleting the app, erasing the device, or losing the device means those records cannot be recovered through Cardimo.

Open Settings in Cardimo, tap Erase All Data, and confirm. This removes all card records from the app and cannot be undone. It does not remove copies that you previously shared or pasted into other apps.

Close and reopen Cardimo, and check that your device has available storage. Restarting the device may help with a temporary system issue. Avoid deleting the app as a troubleshooting step if you need to keep your existing cards, because there is no cloud copy to restore.