We want to hear from you if you have any problems while using the application. We will try to fix them as soon as possible and resolve the issues.

Contact us by sending an E-mail using and provide as much detail as possible e.g. the iPhone or iPad characteristics (device type, operating system version, memory).

Specify under which circumstances you encountered the problem or what information provided by the app is wrong e.g. an answer on a question presented during an exam, errors in theory or otherwise.