Free App, paid content

The indication that the contents must be ordered free of charge comes very late.
That the app under the recommendations of the free Apps is making the whole of me still incomprehensible.
Of course daskeine lie, the app is free, too. But not most of the content.

In order to ever access the "free" content, you have to register online (I wonder why !?).

Actually, I would have made really any bad review, but I really found only in the English language Conditions of Use that you have to pay. Maybe you could notice it even earlier (?), I do not. And I find it very wrong. Openness is announced.
Maybe I would have the app even based on the condition that you have to pay for it, I would have been informed - now she's in it for me.