Max Control 4 Android App
Max Control is an Android app that provides a Bluetooth serial interface. It provides 5 buttons (Forward sends f, backward sends b, left sends l, right sends r and stop sends s over the serial) and a command-style serial interface.
Download Max Control 4: APK (Android package) download
See here for help on installing the file once you’ve copied it to your device
Max Control was not made by Harry Soft, but is used in the SerialDrive sketch for Arduino which is made by Harry Soft. Max Control 4 is made by http://www.zagrosrobotics.com