But now I got an mail from a person who has downloaded the App on his Samsung S4 Mini and he says that in some of the text fields on his phone is black so he cannot see what he enters.
Is this a problem with my App or the setup of his phone.
Same here. I have an Galaxy Note 1, a Galaxy note 3 and a galaxy note 10,1 Tablet. No one of these seems to be compatible. Google Play dont let me install the app