"Very Simple and Basic Calendar App, Great for beginners, very easy to use, very user friendly, making a recurring appointment is easy, setting an alarm is super easy, I appreciate the clean user interface, big squares for each day, fill up the whole screen. Just what you would want and expect from a simple, basic, easy-to-use calendar app, I am using version 3.28.2 on Linux Mint 19. I find no pre loaded Birthday that is impossible to get rid of, when I search for "birthday", nor does it appear on my screen anywhere. I havent tried backing it up but I would imagine a standard backup of all my data would get it, or timeshift system restore utility. It is more powerful than I will ever need, can syncronize with google calendar, add in online weather, create multiple calendars PERSONAL, or BIRTHDAYS and ANNIVERSARIES, etc. w. mint 19."