Apponix is a versatile Android App with local news feed and app resources by category.
Demo: https://codecanyon.net/item/apponix-all-in-one-app-browser-wallpaper-file-manager-ringtone/32668469
Android Online Ringtone Application is a online ringtone android app, its very easy to customize yet very powerfull and simple app.
Demo: https://codecanyon.net/item/android-online-ringtone/25664467