Period Calendar Period Tracker by Simple Design Ltd. is a health and fitness app that helps users track their menstrual cycle, predict upcoming periods, and log symptoms, moods, and related notes. It offers a calendar view with predictions for periods, fertile windows, and ovulation estimates based on the data you enter, along with reminders for upcoming dates. Users can record details such as flow intensity, cramps, mood changes, and other personal notes to build a clearer picture of their cycle over time. The app is designed for anyone who wants a simple, organized way to understand their menstrual patterns, whether for general awareness, planning, or family planning. Its estimates are informational and not a substitute for professional medical advice.

Period Calendar Period Tracker is a capable and easy-to-use cycle tracker that covers the essentials well. The calendar interface is clear, daily logging of symptoms and moods is quick, and the prediction and reminder features give users a helpful sense of what to expect. The breadth of trackable data, from flow to mood to personal notes, lets the app build a useful long-term overview without feeling overwhelming. It is a strong choice for everyday awareness and planning. The honest limitation is that, like all cycle apps, its predictions are estimates based on past data and can be less accurate for people with irregular cycles, so they should be treated as a guide rather than a guarantee. It is not a medical device and should not replace a healthcare provider for contraception or diagnosis. Some users may also encounter ads or prompts to upgrade to a premium tier.