{{short description|An unlocked Android phone used for development purposes}The Android Dev Phone (ADP) is a SIM-unlocked and bootloader unlocked Android device that is designed for advanced developers. While developers can use regular consumer devices purchased at retail to test and use their apps, some developers may choose not to use a retail device, preferring an unlocked or no-contract device. The Google Nexus series was the de facto successor of Android Development Phones, with the Google Pixel series coming after.