【實用工具app】Wallpaper Changer|最夯免費app-gigacircle

Change your mobile home screen wallpaper from an image folder of your selection every 15 minutes (default) or choose the time interval to change wallpaper, configure image size option (exact screen size, best fit, custom image size), just select an image from your image folder and enable the service to start switching wallpaper.

this app tested on different samsung devices.