Oobit is a mobile app that enables users to spend and transfer cryptocurrencies like BTC, ETH, USDT, and others using tap-to-pay and peer-to-peer features. The platform supports contactless payments at merchants accepting Visa/Mastercard—via NFC and Apple Pay on iOS, and tap-to-pay on Android. It also allows instant, fee-free transfers to contacts using phone numbers. Users can connect external wallets such as MetaMask or purchase crypto within the app.