Trio Widget is a free Android app developed by Upper Duper in the category of Utilities & Tools. It offers two color themes, dark and light, to choose from. The app automatically colors the battery icon based on the battery level, indicating blue for full, orange for intermediate, and red for low. The battery temperature unit can be changed to Celsius or Fahrenheit. It also features a battery charging indicator and shortcuts to alarm, calendar, and battery consumption.

The app has a graphical user interface with themes for clock, calendar, and battery. The battery level display is also graphical and color-coded. The full version of the app offers an option for no panel background and 50% and 75% transparency levels.

Overall, Trio Widget is a convenient tool for monitoring your battery status with an intuitive graphical user interface and useful features. Consider supporting the development by purchasing the Pro Version, available on the Google Play Store.