http://www.coindesk.com/bitcoin-apps-for-android-iphone-and-windows-phone/Blockchain website (through a special “Pairing” process). It also has a QR code with a Blockchain bitcoin wallet address, but it can also generate QR codes with requests for specific amounts of bitcoin. You can also send bitcoin by typing (or pasting) an address or by scanning a QR code. It also has more basic and very useful features like displaying a list of your transactions, and a PIN lock to make sure nobody accesses your wallet. You can also pick a fiat currency to display on the main screen of the app to show what your bitcoin balance is worth.