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Coffee Wallet is an open source cryptocurrency wallet that supports BTC, LTC, ETH, and a range of ERC20 tokens. It is available on Android and iOS. It can be used to send and receive coins, and has the following features: full wallet support for: BTC, ETH, LTC, DOGE, portfolio support for tracking other coins, ability to display a variety of data sources, send and receive payment with QR code, face/fingerprint authentication, mnemonic support, crypto transfers via messaging, printable PDF paper wallet generator.