Period Calendar Period Tracker

What it does

Period Calendar Period Tracker is a menstrual health app for recording periods, cycle length, flow, symptoms, moods, body temperature, cervical mucus, sexual activity and other notes. It uses your entries to estimate upcoming periods, ovulation and fertile days. That makes it useful both for people who want a clearer cycle record and for those planning conception or monitoring fertility patterns.

Who it suits

The app can work for users with regular or irregular cycles, although its predictions are most useful when you keep your records up to date. It also includes reminders for periods, fertility windows and contraceptive methods such as pills, rings, patches and injections. Wear OS support adds tiles and complications for selected period, ovulation, water and pill reminders.

What to watch for

• Cycle and ovulation dates are estimates based on the information you provide, so they should not be treated as a diagnosis or as guaranteed contraception.
• The number of tracking options may be helpful for detailed records but unnecessary if you only want a simple period calendar.
• Anyone sharing a device or recording sensitive health information should review the app’s privacy and backup settings before using them.

At a glance

Developed by Simple Design Ltd., this Health & Fitness app has a 4.880333 rating from 4,836,601 reviews and 100,000,000+ installs. Its main strength is breadth: alongside period dates, it brings fertility estimates, reminders, symptoms, moods and personal notes into one timeline. It is a practical fit for users who want an ongoing cycle diary rather than a single-purpose calendar, while those needing medical guidance should use a qualified healthcare professional for decisions about symptoms, fertility or contraception.