The "Simple Moon Phase Widget" has been upgraded to a new app with improved features. The app includes an upgraded calendar with variations of the background, additional data, MoonSign, and Mercury retrograde. It is lightweight and allows for notifications without setting the widget to the home screen. The moon color of the widget can be changed in trial. However, note that there is a paid function to change the color of the moon.

The app has several functions such as tapping the date on the calendar to migrate to the detail screen that displays the large moon image. Detailed data such as age of the moon, the distance to the moon, percent illuminated, time of the moonset/moonrise, Moon sign, Mercury retrograde is available. The app also notifies full moon and new moon, first quarter, last quarter in the status bar and widget. The widget is resizable and there is also a memo function on the calendar.

The app requires permission of Storage and Location. It does not change the wallpaper and users need to prepare wallpaper by themselves. The app does not provide an image to completely reproduce the libration of the moon. The position of the pattern of the moon phase, such as craters, shifts from a fact a little periodically.