Period Tracker: Cycle & Sync

ZPrime

About this app

Take complete control of your menstrual health with Period Tracker: Cycle & Sync—the modern, privacy-first period and cycle tracker built for you, and optionally, your partner. Whether you are tracking your period, analyzing cycle phases, or logging daily symptoms, our app provides intelligent insights tailored to your unique body.

KEY FEATURES

NATIVE HOME & LOCK SCREEN WIDGETS
Stay updated without opening the app! View your current cycle phase, day counter, and period predictions right on your Android home screen and lock screen.


ACCURATE PERIOD & OVULATION TRACKING
Log period start and end dates with a single tap. Our intelligent prediction algorithm learns from your cycle history to forecast your next period, ovulation day, and fertility window.



DYNAMIC CYCLE PHASE GUIDANCE
Understand the 4 key phases of your cycle: Menstrual, Follicular, Ovulation, and Luteal. Enjoy a dynamic dashboard that adapts health insights based on your exact phase.

INNOVATIVE PARTNER MODE & DATE PLANNER
Stay in sync with your partner through optional, consent-based sharing. Share cycle phases and period countdowns, or explore phase-aware date recommendations with customizable privacy controls.

COMPREHENSIVE SYMPTOM & MOOD LOG
Easily record symptoms, flow intensity, mood triggers, and energy levels in seconds. Gain deeper self-awareness with intuitive trend charts and pattern breakdowns.


100% PRIVATE & 100% FREE
No ads, no subscriptions, no paywalls, and no hidden fees. Your health data remains private on your device with optional biometric lock.

Start tracking today to better understand your body, cycle, and patterns!

What’s new

Minor Bugfix