I love to keep track of the moon. I believe it has an affect on our life. I wanted an app with a full calendar, one I could look back to other dates and find information about and, of course, an attractive interface. An unexpected feature of the app is that it gives the full moon names using Calendar month, Native American, Wiccan and others. However, I was unhappy to find it didnt have Chinese lunar names. Of all the names it "should" have, that would be it. When you look back at a certain date, perhaps decades ago, you can also set a specific time. One small problem, however, you should be able to tap a key to return to today. You cant. You have to scroll back to today. But, at least it offers the feature to look back. The bottom line is, this is a nice app and Im glad its universal. Thats probably why they doubled the cost. One other feature thats needed, in my opinion, are push notifications. Some people, like myself, like to be notified when there is a full moon --- or when one is expected within the next few hours or a day.