Need to go up to premium to really make it useful. Premium is $30+. Otherwise it is a basic calendar that "might" be as good as the one the phone come with. It could be easier to use, but I'm not putting the time into figuring that out when I'm asked to upgrade. It comes up almost everytime I try to use 1 of the options. The simplest of free calendars allows me more options than the free part of this calendar. I just deleted it. Not worth going through error reports right in the beginning.