You could have downloaded popCalendar 1.8.7 for Mac from our application library for free. Popcalendar.zip is the most common filename for this app's installer. This free Mac application was originally developed by Magnesium-App. This free program is compatible with Mac OS X 10.8 or later. The program lies within Productivity Tools, more precisely Timekeeping. The most popular version among the application users is 1.6.
From the developer:
popCalendar is a tiny calendar that fits in your Menu Bar giving you a faster access to your timetable. A presentation per month lets you find the day or the date you need while a click on a day lets you see all of the events of it.
You may want to check out more software for Mac, such as World Clock Deluxe, MagiCal or SketchBox, which might be similar to popCalendar.