To the details.
Technical details are to be announced in each app. Thus, everyone knows if you have these details read on what to watch.
For language: There are a lot App`s in English. I've often read that an app is SUPER, but some stars taken off because of the language gets (?) I do not understand.
Second example: In the above description is language. Below "Now available for download" from the stands: Supported languages: English. Here is me but before you install known to what language it is. Since there are no reason to deduct star.