Your period data never leaves your phone. 100% private.
Luna is the period tracker that actually respects your privacy. With 99% accurate predictions powered by on-device AI, your intimate health data never leaves your phone. No cloud, no sharing, no ads. Track periods, ovulation & symptoms with complete privacy.
Hey Product Hunt! 👋 I'm Pedro, the maker of Luna. I built this after my wife asked me a simple question: "Why does my period app need internet to tell me when my next period is coming?" That got me thinking... and worried. Period tracking apps collect incredibly intimate data - cycles, symptoms, sexual activity, pregnancy attempts. Recent events (Roe v. Wade, data breaches) have shown this data can be weaponized. So I built Luna with one core principle: YOUR DATA NEVER LEAVES YOUR PHONE. 🔒 How L
What happens if I lose my phone?
How do you make money if you don't collect data?
Discussion threads divided by interest score. Above 0.30 is strong. Below 0.15 suggests the product got clicks but not conversation.
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