Mira - Cycle & Period Tracker

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