Period Tracker - My Calendar is described as 'Period Ovulation Tracker - My Calendar can help you view past and predict next period, fertile and ovulation day. Never be afraid of missing your period and ovulation' and is a Period Tracker in the sport & health category. There are more than 25 alternatives to Period Tracker - My Calendar for a variety of platforms, including Android, iPhone, iPad, Android Tablet and Apple Watch apps. The best Period Tracker - My Calendar alternative is drip., which is both free and Open Source. Other great apps like Period Tracker - My Calendar are Mensinator, Menstrudel, Tyd and Euki.