To backup the Private Key and the 12-words Seed of your wallet:
1- Go to Settings by tapping the rightmost icon at the bottom.
2- Tap on Backup wallet.
3- After confirming your PIN, you will be directed to a screen with Private Key and 12-words Seed to backup somewhere safe (usually on a piece of paper). You can also use the Copy to Clipboard button.
Be aware of using this safely. Never disclose your Private Key or Seed to any one, even to Klever admins. We do not save your Private Key and 12-words Seed in our database. So, if you lose them, there is no way to recover them if you do not have access to Klever application.
Note, the 12-words Seed allows you to restore all your wallets (all blockchains) inside Klever only. However, every wallet has a different Private Key. This is the actual key linked to your wallet address on the blockchain. The Private Key can be used to access your wallet using any application (not only Klever). So, it is a good practice to backup the private keys of all your wallets, one by one.