Long Battery Life DEMO is an Android application developed by DMKHO software under the category of Utilities & Tools. This application is designed to extend phone battery life by automatically disabling WiFi and cellular data network connection when the screen is turned off. The DEMO version has easy configuration settings, shortcuts to manually enable/disable WiFi and Cellular network connections, and a widget to show battery charge on the home screen.

The application is free of charge and does not show any commercial banners or contain any spyware or malware functionalities. However, for additional features such as different battery saver modes and an option to show battery charge % indicator on the status bar, users can upgrade to the Full version available on the Google Play market.

Overall, Long Battery Life DEMO is a simple and effective solution for those experiencing battery drain issues on their Android devices.