Advertisements are a part of this application. The app is often downloaded by Samsung and Sony users. Get the free .apk file of Glass theme & glass icon pack + amoled wallpapers 4.0.0 and take a look at users' reviews on Droid Informer. This installer requires 9 MB of disk space and it runs on Android devices 4.4 and above.
The security report has shown that the app is completely safe.
From the users' point of view, the plus of this application is an awesome UI, however, some people point out that the weak side of the tool is spam ads.