Use The Tuning School Credit App to purchase tuning credits for HP Tuners MPVI units from your Android device.
Download and install TuningCredits to an Android tablet or phone. The device needs Android 4.1 or later.
The About panel in Settings application shows the Android version of your device.
The specific Setting options described below may vary slightly based on your Android version.
In the Settings application, click the "Security" or "Lock screen and security" item.
Check the Unknown sources item to allow installation of apps from sources other than Play Store.
Click the Download link below to download TuningCredits.apk to the Downloads folder on the your Android device.
Tap downloaded application and click Install.