This app was an academic tool for internal use, but Google doesn't allow to publish private link-only betas so that's why it is publicly available. It was designed for measure small experiments using device sensors/actuators. You can try it if you want, it should be self explanatory. Features: - Ability to read and record the accelerometer sensor. - Ability to read and record the microphone sensor. - Ability to play sound of a specific frecuency. - Ability to turn on/off the vibrator. - List o