How do I revoke smart contract permissions?

When giving permission to use smart contracts, you have the option to authorize them for the current transaction or grant unlimited access. Opting for unlimited access can result in significant cost savings, as it eliminates the need to pay confirmation fees for each individual swap.
You can revoke permissions through the following services:
ETH: https://etherscan.io/tokenapprovalchecker;
BSC: https://bscscan.com/tokenapprovalchecker;
Polygon: https://polygonscan.com/tokenapprovalchecker;
Arbitrum: https://arbiscan.io/tokenapprovalchecker;
Avalanche: https://snowtrace.io/tokenapprovalchecker;
Fantom: https://ftmscan.com/tokenapprovalchecker;
Optimistic Ethereum: https://optimistic.etherscan.io/tokenapprovalchecker.
Future updates are planned to add functionality to revoke permission in the app.