Auto Change Wallpaper is an Android app developed by Dev Viet that lets you customize your mobile screen with your favorite images. The app swiftly and automatically changes your wallpaper with a fully automated timer, making your phone screen come alive with your beautiful pictures and images.

With Auto Change Wallpaper, you can add unlimited images or entire photo galleries, and select as many pictures as you want. You can also search and download photos from Flickr to your device and add them to the album "Auto Change Wallpaper." Additionally, the app's powerful wallpaper changer scheduler enables you to set the wallpaper to change automatically after x seconds, minutes, hours, or days, and create a schedule to change the wallpaper at a specific time according to the date and time.

This cool app is absolutely free, has a simple user interface, and does not over-consume the battery. It also allows you to change the lock screen wallpaper, switch to the next wallpaper when the home screen is visible or hidden, and double or triple tap on the home screen to switch to the next or previous wallpaper or album.

Overall, Auto Change Wallpaper is a great app for personalizing your mobile screen with your favorite images and creating a lively and dynamic look for your phone.