So... the developer of the app can do less than an enthusiast forum. OK then...
I've bought this game three times (Steam, Google Play, Humble Bundle), but if this is the extent of the support, I'll go ahead and skip anything else you guys write.
@steampoweredlawngnome &David Kovářík, I suggest you post a topic concerning your "no picture/sound+" problem on the Transformer Forum
http://www.transformerforums.com/forum/forum.php. The contributors to that Forum will have *much* more to offer you than we can here.
Good luck (and please write back when you solve your problem to tell others how you overcame it).
~Alex