MPU-Hilfe is an Android application that helps individuals prepare for the Medizinisch-Psychologischen Untersuchung (MPU), colloquially known as the "idiot test" or "Depperltest." Developed by Nick Melekian, this app provides first insights into what to expect during the MPU and how to prepare for it.

The MPU examines individuals who have committed driving offenses due to alcohol, drugs, too many points, or criminal acts. MPU-Hilfe offers answers to frequently asked questions, an MPU dictionary with essential terms, basic rules to follow, and introduction videos to the MPU. Additionally, the app includes a mini MPU test to give an impression of the type of questions to expect and how to handle them.

It is advantageous to have basic knowledge of the subjects being examined, including alcohol, drugs, traffic conditions, and crimes. MPU-Hilfe also provides information on important psychological issues that should be considered before the MPU.

Many MPU sufferers are overwhelmed by preparing for the examination alone, which results in high failure rates. MPU-Hilfe offers insights into the contents of an MPU and shows what a good MPU preparation should include. The app also provides dates for professional MPU preparation seminars at different locations.