Bug and Stealth mode on App Store
It is because the bug. In calendar view there is one day mismatch in the days. Today is Thursday but in Calendar view it is Wednesday. Also the name on the icon is Pocket Moon. The name in the Subscriptions is Yearly. From inside the App only once opened the App Store and for searches it does not show up. When does show up for the full name of the App it shows only the icon and the App name unlike other Apps where you have thumbnales and more information. The download webstore icon on the developer's homepage just a picture without link.
