Google Wallet: For Android
You'll never have to worry about your student forgetting his or her wallet at home, or losing it, if you have Google Wallet, a password protected app that uses near field communication (NFC) technology to conduct payments between the smartphone and an NFC-supporting terminal. Google Wallet is used just like a credit card, simply wake-up the phone and press it to the terminal; the phone will then ask for the pin, followed by selecting credit on the terminal. Google Wallet supports all major credit cards and some gift cards. All credit card information and financial transactions are stored securely on the cloud.