Coming soon
Femme Period Calendar
Cycle tracking with AI
Femme Period Calendar is a minimalist period and cycle tracking app for Android. It logs your periods, learns your average period length, and predicts your next cycle. A built-in AI assistant — Femme — can answer questions about your body, cycle, mood, or symptoms; conversations are processed only to generate a response and are never stored. All your cycle data stays on your phone.
Features
- Period and cycle tracking with smart predictionsLog your period and let Femme predict the next one based on your history.
- Adaptive period buttonOne button that knows where you are in your cycle: "My period started today" becomes "My period ended today" while you're on your period.
- Smart period length learningAs you log period start and end dates, Femme automatically calculates and updates your average period length for more accurate predictions.
- AI conversations with FemmeAsk Femme anything about your body, cycle, mood, or symptoms. Real, helpful responses powered by Claude AI.
- Visual cycle ringSee your current phase, day of cycle, and what's coming next on a beautiful interactive ring on the home screen.
- Edge-to-edge calendar viewBrowse past and future cycles with a full-width monthly calendar showing period, fertile window, and ovulation days.
- Reactive bunny mascotA cute bunny mascot that changes mood based on your cycle phase — tappable from any screen to return home.
- Cycle phase insightsUnderstand follicular, ovulation, fertile, and luteal phases with clear explanations tailored to your cycle.
- Pregnancy chance estimatesSee your estimated chance of pregnancy for any given day based on your cycle phase.
- Editable cycle dataChange your last period date anytime to keep predictions accurate.
- Fully offline cycle data — no account requiredAll your cycle data lives only on your phone. No sign-up, no cloud sync, no email needed.
- No advertising, no analytics, no third-party trackersNo ad SDKs, no analytics, no tracking pixels. Your data is yours.
- Privacy-first AI chatYour conversations with Femme are not stored or logged. Messages pass through a secure proxy and are processed only to generate a response.