Yes, you can add your card to multiple devices that support wallet payments. You can follow the instructions on how to add your card to Apple Pay or Google Pay here.
Each time you try to add your card to a digital wallet the attempt might need to be authenticated and the Kroo app will send you a push notification asking you to confirm the request. The authentication request will remain available in the app’s ‘Home’ screen for 24 hours – if it expires, you’ll need to restart the process and add your card to the wallet again.