Can I use all three cards for different wallets?

You can use all three cards as three separate wallets with Tangem Wallet 1.0, while with Tangem Wallet 2.0 it is mandatory to create a backup with the second card. Please keep in mind, however, that if you lose one of the cards without a backup, you will lose access to that wallet. We therefore recommend that you create backup copies on additional cards. This way, if one of the cards is lost or stolen, the backup cards will help restore access to your wallet, and the access code will help prevent attackers from transferring your funds.