The days of using pen and paper to keep track of menstrual cycles are past -- apps for period tracking have proliferated. Here are our picks for. The number of apps out there for period monitoring are legion, which is as it should be. It's an important part of health. And it took me. Monthly Cycles is a personalized and easy to use tool to track, monitor and manage your monthly menstrual cycles. The program calculates your fertile days and.
Monthly period app Video