You can download the Philips GroomTribe App on your phone to use it with your Bluetooth-connected Philips Shaver. The app is compatible with iPhone 6S (or higher), running on iOS 11.3 or higher. It can also be used on Android phones with a screen larger than 4.5 inches, with OS version 6.0 or higher, and Bluetooth version 4.1 or higher.