Period & ovulation estimates
Estimated dates based on your entries and settings.
Period Tracker & Menstrual Calendar for Android
Track your cycle and ovulation, log symptoms and mood, and set gentle reminders — your data stays on your device.
Official website of the RosyCycle Android app. RosyCycle is developed by PuhlaSteve (USA). data safety details · contact support
Menstrual cycle in short
The menstrual cycle is a series of regular changes preparing the body for a possible pregnancy.
Learn about cycle phases →Everything for cycle tracking
What you can track: Log period days, cycle length and period duration, ovulation and fertile-window estimates, plus symptoms like cramps or bloating, mood and notes. Over time, the calendar helps you spot patterns and plan ahead.
Privacy-first / on-device: RosyCycle is built as an offline period tracker: your entries stay on your phone, and you can start without an account. If you use backups, they are made for your own use (for example, moving to a new device).
Symptoms, mood & notes
Log wellbeing and notes, and keep everything organised in one place.
Reminders
Gentle notifications for important days and habits.
Privacy-first & offline
Your cycle data stays on your device. The tracker works offline.
Frequently asked questions
Is RosyCycle a free period tracker for Android?
The core tracker is intended to stay free. Optional premium features may be added later.
Does RosyCycle work offline (no account)?
Yes. Tracking works offline and you can start without an account. Internet is only needed for Google Play download and updates.
Does RosyCycle share my cycle data?
Your entries stay on your device. The website uses only anonymous, aggregated analytics.