You can paste any wallet address (ERC-20, BTC or TRC-20) and it will provide you analytics about this wallet's holdings. Which tokens and how much it holds, its total value, 24H and 7D change, mcaps, and all of that. Up to 10 wallets and without any signing up or all of this stuff.
Will fix it in this month's update, which will be released in around two weeks together with new Wallet Tracker tool and other improvements.