3D Wallpapers & Music is a free Android app developed by Apps Olga Karelina. It falls under the category of multimedia, specifically music and radio. The app offers a variety of wallpapers and ringtones to choose from, and also allows users to listen to music while enjoying the app's features.

The app's interface is simple and easy to navigate. Users can browse through different categories of wallpapers and ringtones, and preview them before selecting their favorites. The music player is integrated into the app, making it convenient for users to listen to their favorite tunes without switching between apps.

Overall, 3D Wallpapers & Music is a great app for those who love to personalize their Android devices with unique wallpapers and ringtones while also enjoying their favorite music. The app is free to download and offers a decent selection of content to choose from.