Customer Service: We provide a lifetime Femometer app service and a 1-year service for quality-related issues to ensure your problem is fully resolved. For any issues, please contact us freely. Smart Femometer App: Femometer App can save your all test strip result and track your own fertility and ovulation calendars. Easy to Test: These two tests strips are easy to read with 5mm width. With the OPK combo, you can spend less time and money to get pregnant. 99% Accurate Tracking: LH Levels over 25miu/ml can be detected. Ovulation tests give a greater chance of predicting the most fertile days accurately, even if the menstrual cycle is not regular; Pregnancy tests can confirm pregnancy sooner than a missed period. Get Pregnant Naturally: Ovulation tests give woman greater chance of predicting their most fertile days, even if their cycle lengths are variable; Pregnancy tests can tell pregnancy sooner than a missed period.