Coinbase Wallet (formerly Toshi) is the #1 mobile Ethereum wallet and Web 3 DApp browser. Wallet makes it easy for you to securely store, send and receive Ether and ERC20 tokens. It also allows you to interact with Web 3 decentralized applications (DApps) powered by Ethereum.
Its a simple tool to calculate how much % profit you could have made if you had invested in any of altcoins/cryptocurrency in past.
Dead Coins is a straightforward list of cryptocurrencies forgotten by this world.