Stake CRO to unlock card tiers and earn rewards.
1. Open the App and go to More > Card.
2. Tap 'Upgrade' on your current card.
3. Choose the tier you want and the amount of CRO to stake.
4. Confirm — CRO will be locked for 180 days.
After the lock period you can unstake any time. Staking also boosts your earning rates on Crypto Earn.