Mira - Cycle & Period Tracker

Free, private cycle tracking with on-device AI. Built for irregular cycles & PCOS — smart predictions, a private AI companion, no ads, no data selling.

Mira is a free, privacy-first cycle tracker built for real bodies — especially irregular cycles, PCOS, and anyone tired of apps that assume a perfect 28-day month.

WHY MIRA

• Free, forever. Every feature is unlocked. No paywall, no subscription, no ads. • Privacy by design. Your health data stays on your device and your own private iCloud. We never sell or share it, and there are zero third-party analytics or advertising SDKs. • Built for irregular cycles. Our adaptive prediction engine learns from your real data instead of forcing a textbook cycle — and it shows an honest confidence range, not a single fake "sure" date.

PRIVATE ON-DEVICE AI • Ask Mira anything about your cycle — a chat companion grounded in your own data • Plain-language summaries of where you are in your cycle • AI-written, phase-aware guidance for today, plus a narrative report for your doctor • Powered by Apple Intelligence on supported devices — your data never leaves your phone, nothing is sent to a server

SMART PREDICTIONS • Adaptive forecasting that weights your recent cycles more heavily • Confidence range + fertile window, not a single rigid date • Automatic regularity detection — Mira adjusts as your pattern changes

TRACK WHAT MATTERS • Log periods, flow, and symptoms in seconds • Tap any date on the calendar to log the past • Insights tab: symptom frequency, cycle patterns, and health indicators

LIVE IN SYNC WITH YOUR PHASE • Personalized recommendations for workouts, nutrition, and energy by cycle phase • Phase guide that explains what's happening in your body today

APPLE HEALTH & APPLE WATCH • Read and write menstrual flow with Apple Health • Apple Watch app: cycle ring, current phase, and countdown to your next period

SHARE WHEN YOU CHOOSE • Clinical report for your doctor (cycle stats, irregularity score, symptom frequency) • Simple partner summary to keep someone close in the loop

Your cycle, your rhythm.

Mira provides general wellness information and is not a medical device. It is not intended to diagnose, treat, or prevent any condition, and should not be used for contraception.