Clear predictions
Your next period, fertile window and ovulation day — and exactly when your cycle and period end.
Lunalia predicts your period, fertile window and ovulation, and helps you understand how your body changes through every phase — beautifully simple and completely private.
Free · iPhone · No account needed
Designed to be calm, clear and quick — log your day in seconds.
Your next period, fertile window and ovulation day — and exactly when your cycle and period end.
Flow, 14 symptoms, mood, energy, discharge, tests, temperature, sleep and notes.
Average cycle and period length, regularity, history and your most common symptoms.
Menstrual, follicular, fertile or luteal — with practical tips for each phase.
Before your period, at the start of your fertile window, daily, or for your pill.
No account, no ads, no servers. Lock with Face ID and export to CSV anytime.





Rest and recharge — energy is naturally lower.
Estrogen rises, and so do energy and focus.
The days with the highest chance of pregnancy.
Progesterone rises; PMS symptoms may appear.
Lunalia has no account and no servers. Everything you log lives only on your iPhone — we can’t see it, sell it or share it, because we never receive it.
Available in English, Romanian, Italian and Spanish — switch anytime in Settings.
Yes. Lunalia is free to download and use.
Only on your iPhone. Lunalia has no servers and no account, so your data is never sent anywhere.
Lunalia learns from your last six cycles. The more you log, the more accurate it gets. Predictions are estimates, not medical advice.
No. Lunalia is not a medical device and must not be used as a method of contraception.
Lunalia is coming soon to the App Store.