You are downloading the Gehirntraining TI AppX file v126.96.36.199 for Windows Phone. Gehirntraining TI is a free Education App: This ist the perfect app for training your brain. Train effectively in four different categories: Concentration, Speed, Memory and Maths. And that is. You can now download the offline AppX package file to install & try it.
Download Locations for Gehirntraining TI 188.8.131.52 AppX file
To try to install it manually from an SD card, you should choose one of the server location above to get the offline Gehirntraining TI AppX file, move the file to your phone's SD card and then tap 'Install local apps' in the phone's App list.