Ovulation Period Tracker by Leap Fitness Group is a reliable and easy-to-use period and ovulation calculator app. It is designed for women to view past and predict future periods, fertile days, and ovulation days. It is a free app available on Android.

The app offers accurate predictions based on your menstrual history and becomes even more accurate with usage, thanks to its machine learning (AI) technology. It has a beautiful design with lovely decorations, which makes it an enjoyable experience to use. You can clearly view your notes, intercourse history, moods, symptoms, weight, and temperature chart, etc., on its awesome calendar and report. You can also customize your personal period length, cycle length, and ovulation for irregular periods.

The app also offers privacy and security, ensuring anonymous use with no account creation or real-name registration necessary. It also does not collect or sell any of your data in any way. Additionally, you can easily delete all data with just one click. The app also offers period and fertility reminders, so you never miss your next period or ovulation day. Overall, Ovulation Period Tracker is the best period tracker app for women to track their period and ovulation accurately and reliably.