I found two bugs:
1. On Lenovo Tab2 after entering to any main category and then going back - category images are broken, also "play" button dissapear. Will attach screenshot on evening if you want.
2. It's not a bug in fact, but still: for some devices like Pentagram Quadra 7 Ultra Slim your app is unavailable on Google Play Store, and Store says that app is dedicated for phones (Quadra 7 is tablet, but Lenovo Tab2 also). However I have root access, so I changed device name and it works quite well, so I don't know why store don't allow me to install.