▽code.google.com/intl/ja_ALL/android/ ●11/16 11:30 Google offers a variety of services on top of the Android platform. These services let you add powerful Google features to your apps, such as sign-in, maps, and mobile payments. You can find more information about Google services on Android at developer.android.com. If you want to start building apps for Android, download the Android SDK now. Last updated November 15, 2013.