You can have up to 6 active physical cards and 5 active virtual cards linked to your Revolut account. A disposable virtual card doesn't count towards your allowance.
You can use all these cards daily, or freeze any extra cards in-app as you need. Just tap 'Unfreeze card' when you want to use it. You can also name spare cards in the app, so you can remember what each card is for, but this name won’t be printed on the physical card.
Please also note that the spare card should be used exclusively by the account holder. If you would like a card for someone else, they can simply create their own Revolut account if they are over 18 years old.