pixPaper, previously known as 500px live wallpaper, is a free live wallpaper application for Android that displays stunning, random images from online services. Due to the 500px API shutdown, the app now loads images from Flickr or local folders, with more services to come.

One of the best features of this app is the ability to choose the categories you like to see on your wallpaper. You can simply tap with two fingers on your home screen to change the wallpaper and enjoy the breathtaking images. The app is free to use and allows you to choose any category and feed.

In addition to the free features, pixPaper also offers premium features that allow you to customize the wallpaper even further. With color filters such as Black&White, Sepia, Matrix Green, Color Boost, Desaturate, Dim, and a blur effect, you can match the wallpaper to your style. You can also set a Wi-Fi only update and customize the interval update.

Overall, pixPaper is a fantastic live wallpaper app that offers a great variety of beautiful images to choose from. The app is easy to use and has a clean, user-friendly interface. If you are looking for a way to add some life to your Android device's home screen, pixPaper is definitely worth checking out.