The app "Lernen (1+)" is designed to help young children to try different things (fruits, vegetables, animals and other) through their own actions (tap on the iPhone / iPad) and know the meaning of the objects depicted. This is supported by a voice output to the selected object.
It is recommended to disable the iPad setting Multitasking Gestures, since small children go through their wiping movements very fast times to a different app or close the app.