Cycle Rhythm: Period Calendar

Cycle Rhythm brings your period dates, symptoms and personal notes together in a simple calendar. Record how you feel, review your history and see an approximate date for your next period without creating an account.

📅 YOUR CYCLE AT A GLANCE

Mark period days in the monthly calendar and choose your usual cycle length. The app uses your entries to calculate an approximate next-period date. You can review earlier months and update an entry whenever you need.

📝 WELLBEING AND PERSONAL NOTES

Record flow intensity, symptoms and anything you want to remember. Open a date in the calendar or add a note for today. Your observations remain available in your history.

📂 EXPORT YOUR ENTRIES

Save your observations as a readable TXT file using the system file picker. Choose where to keep it and take care when sharing personal information. This release does not import exported entries back into the app.

🎨 MAKE IT COMFORTABLE

Choose a light, dark or automatic theme. Russian and English are available in settings; your selection is saved. The initial language follows your system language: Russian for Russian, English otherwise.

📱 NO ACCOUNT REQUIRED

Core calendar and diary functions work offline. Records and settings are stored on the device and may be included in Android system backups. There is no developer-operated account or automatic cloud sync.

🎬 24 HOURS WITHOUT ADS

The app contains banner and app-open ads. In settings, you can choose to watch a rewarded video to disable these ads for 24 hours after the advertising network confirms the reward. Availability depends on the network and internet connection. Using the calendar does not require watching a video.

Cycle Rhythm is not a medical device and does not diagnose, treat, cure or prevent any medical condition. Forecast dates are estimates and must not be used for contraception or medical decisions. Consult a qualified healthcare professional for medical advice, diagnosis or treatment.

Contact the developer: [email protected]
Website: https://poleznoapp.com/