🌙
Honest predictions
See the confidence behind every forecast — and exactly which signals would make it better. No black boxes.
🧪
Real fertility signals
Log LH tests, basal body temperature, and cervical mucus. Lumina blends them with your calendar, not instead of it.
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Every life stage
Cycle tracking, trying to conceive, pregnancy, postpartum, and perimenopause — one app that grows with you.
📄
Doctor-ready exports
Turn months of logs into a clean summary you can hand to your clinician — flow, pain, sleep, stress, and trends.
Private by architecture,
not by promise.
Period data is some of the most sensitive data there is. Lumina was built so we couldn't misuse it even if we wanted to.
- All cycle data is stored locally on your iPhone
- No account, no email, no sign-up required
- No ads, no trackers, no data sales — ever
- Optional Face ID lock and one-tap data deletion