Audiko - Audiko Ringtones is a free to use mobile application that can help you customize your mobile phone by setting the most beautiful images your background and the most popular ringtones as your notification signals.

Ringer.org - Ringer.org is a free ringtone maker to make ringtones from any song or audio file.

Wallpaper background - Wallpaper background is another free to use mobile personalization application that lets you enjoy more than 10 million high-quality wallpapers, consists of multiple categories such as Nature, Movies, Places, Flavors, and Games etc.

Switchr.net - Switchr is a free online audio converter site that lets you convert audio files on the fly.

Pitch Black Wallpaper - Pitch Black Wallpaper is an application, allowing you to set the pitch-black wallpaper to your smartphone or tablet.

Zedge - Huge selection of free ringtones, themes, wallpapers and games for mobile phones. 6.