Lumina is your private, intelligent health companion — built for every stage of a woman's life. From your first cycle to menopause, Lumina uses Apple's on-device AI to deliver personalized insights without your data ever leaving your iPhone. YOUR DATA STAYS ON YOUR DEVICE In a world where health apps have been caught sharing intimate data with advertisers, Lumina takes a fundamentally different approach. Zero cloud storage. Zero network calls. Your cycle data, symptoms, and health metrics are processed entirely on-device using Apple Foundation Models. Check the built-in Privacy Dashboard anytime to verify. SMART CYCLE TRACKING • Log periods, flow, mood, symptoms, and 20+ health metrics daily • Automatic cycle phase detection (menstrual, follicular, ovulation, luteal) • BBT charting with thermal shift detection for fertility awareness • Cervical mucus tracking and ovulation test logging • Cycle length trends, regularity scoring, and analytics AI-POWERED INSIGHTS • On-device AI analyzes your patterns to surface correlations you'd never spot alone • Phase-specific wellness tips, nutrition guidance, and exercise suggestions • Natural language AI chat — ask anything about your cycle and health EVERY LIFE STAGE • Puberty: Learn about your cycle as it establishes • Reproductive years: Precise predictions and symptom management • Trying to conceive: Fertility window predictions and BBT analysis • Perimenopause: Track irregular cycles and manage symptoms • Menopause: Symptom monitoring and health maintenance APPLE HEALTH INTEGRATION • Sync heart rate, HRV, sleep, and activity data from Apple Watch • Unified health picture without manual entry BEAUTIFULLY DESIGNED • Warm, calming interface inspired by Apple Health and journaling apps • Phase-colored visual system that teaches you about your body • Accessibility-first: VoiceOver, Dynamic Type, reduced motion 100% FREE Lumina is completely free with all features unlocked. No subscriptions, no paywalls, no ads.