HomeAppsHealth & FitnessOly, Period Tracker, OvulationApps like Oly, Period Tracker, Ovulation Here are some great alternatives to Oly, Period Tracker, Ovulation by Londo Apps : Ovulation Calculator & Tracker ★4.1 LADYTIMER Period Tracker ★4.4 Period Calendar Period Tracker ★4.9 Period Tracker Ovulation Cycle ★4.7 Ladytimer Period Calendar ★4.2 Period Tracker & Fertile days ★4.1 Ovulation Tracker & Fertility ★4.3 Period Tracker Ovulation Cycle ★4.3 Ovulation Tracker App - Premom ★4.6 FemX Period &Ovulation Tracker ★3.8 Period Calendar And Ovulation ★4.8 My Period : Period Tracker ★4.5 Ovulation Tracker & Calculator ★4.8 My Period Tracker ★4.2 period calendar & fertility ★4.3 Ovulation & Period Tracker Pro ★5.0