Lune: Private Period Tracker

Lune is a period tracker that keeps your records to yourself. No account, no servers of ours — your logs live on your iPhone, and every analysis runs on the device. HONEST PREDICTIONS Predictions learn from your own history: a single date with a small margin when your cycle is regular, an honest date range when it varies, and a plain note when more records will help. For reference only — Lune is a journal, not a medical device. MOON AND MEANING Sunrise, sunset, moon phases and solar terms, always in view. A calendar that follows the sky. LUMI, A QUIET COMPANION A small companion who grows alongside your records, at your own pace. HEALTH INSIGHTS WITH PLUS (OPTIONAL) Connect Apple Health to see your data in a cycle-aware view. Data comes from Apple Health, collected by your iPhone and Apple Watch; Lune uses no sensors and computes everything locally. WIDGETS Cycle day and countdown on your Lock Screen and Home Screen, with a discreet mode that shows only the moon. Lune Plus: US$2.99/month, US$12.99/year, or US$24.99 once for lifetime. Prices may vary by region; see the app. Terms: https://lune-82z.pages.dev/terms Privacy: https://lune-82z.pages.dev/privacy