Luna quietly tracks your pain, food, sleep and cycle - then shows you which foods and habits actually drive your flare-ups. 30 seconds a day. No account. Nothing leaves your phone.
Flare-ups feel random. Without consistent data, it's almost impossible to tell what's actually triggering your pain - so you keep guessing.
You try to recall months of symptoms from memory. Luna turns them into a clear one-page report your gynecologist can read in seconds.
Most health apps want an account and your data. Luna wants neither - everything stays encrypted on your iPhone. Always.
Tap your pain level, choose symptoms, log what you ate and how you slept. No journaling, no essays - just the data points that matter for PCOS.
After a few weeks, Luna surfaces the correlations you'd never spot by hand - like "pain is higher on days you eat gluten" - each with a confidence rating, not a guess.
A colour-coded heatmap turns months of logs into an instantly readable picture. Spot your worst stretches, your good runs, and how they line up with your cycle.
One tap generates a clean PDF - average pain, top symptoms, key triggers and sleep - designed for your OB-GYN to read in under a minute. See a sample report →
Luna has no servers, no accounts and no analytics. Everything you log is stored only on your device, protected by iOS encryption and your Face ID. We literally cannot see it.
No analytics, no tracking, no advertising IDs.
Luna makes no network connections at all.
We never see your payment information.
Yes. Daily logging, food & sleep tracking, the 30-day calendar and your basic streak are free forever - no account required. Luna Pro ($7.99/month) adds insights, unlimited history and the doctor PDF, and starts with a 1-month free trial.
Completely. Luna stores everything on your device using Apple's SwiftData, with no servers, no account and no analytics. It doesn't even connect to the internet. You can read the details in our privacy policy.
No. Luna is a personal tracking tool, not a medical device. It helps you record symptoms and spot patterns to discuss with your doctor - it does not diagnose, treat or replace professional medical advice.
Most people surface their top triggers after about 30 days of consistent logging. The more days you log, the more confident Luna's insights become.
An iPhone on iOS 17 or later. Luna is iPhone-only and works entirely offline.
Manage or cancel anytime in your Apple ID subscription settings. If you cancel during the free trial you won't be charged. See our terms for details.
Give Luna 30 seconds a day, and let it find the pattern you've been missing.