How to remove a wallet you no longer need, or even delete all your wallets from Nova Wallet.
How to Forget a Wallet
Open the Nova Wallet application.
Select the identicon at the top right of the screen.
Select the settings option (cogwheel).
Select the Edit button located at the top right of the screen.
Select the red minus icon located to the left of an account you wish to delete.
SelectForget when prompted.
If you have the Cloud Backup feature turned on, selectRemove in the confirmation popup.
How to Delete All Wallets from Nova Wallet
Nova Wallet does not collect or store any of your data on a server. All your wallet information is stored either locally on your device or on your personal cloud storage. Should you no longer wish to use Nova Wallet, here is how you can delete all your wallets.
Open the Nova Wallet application.
Export all the wallets you wish to keep available in the future as described here: Export Wallet. Your mnemonic passphrase, raw seed, and JSON file are all compatible with other Polkadot wallets.
Enablecloud backup if you have it disabled at the moment: Enable Cloud Backup.