Kindly check that your device has the minimum requirements needed for your operating system. Should this not be the case, it will be necessary for you to update your operating system.
The system requirements for the Klett Sprachen App are:
- Android: Version 7 upwards
- iOS: Version iOS 11 upwards
- Windows: Windows 7 upwards, minimum Intel i3 processor, at least 4 Gb RAM
- Linux: Ubuntu 14.04 upwards, minimum Intel Core 2 processor, at least 2 Gb RAM
- Mac: Mac OS X Lion upwards, minimum Intel Core 2 processor, at least 2 Gb RAM