Battery Saver Yeastken is a free Android app developed by ArtsPlanet. It falls under the category of Personalization and is a battery widget that allows you to customize your home screen. The widget is designed to be entertaining as well as useful.

To get started, press and hold your home screen until a menu of widgets appears. Choose the "Yeastken Battery Widget" from the list of widgets. Once added to your home screen, you can tap on the widget to change the battery design to one that suits your style.

This app is perfect for those who want to personalize their home screen while also keeping an eye on their battery life. The interface is user-friendly, and the app is powered by ArtsPlanet.

Note that this app does not require any personal information from users and is completely free to use. Overall, Battery Saver Yeastken is a simple yet entertaining way to keep your phone's battery life in check while adding a personal touch to your home screen.