Today, it has become much easier to exchange cryptocurrencies. You just need to install the program Bitcoin Wallet on your Android device.
Immediately I must say that such a program is not a complete project. In fact, it simply duplicates the full functionality of the site on which the bitcoin wallet is located. To complete the transfer, you just need to specify the desired amount, and then scan the QR code on the recipient's display. The exchange of bitcoin will be done automatically.