Luna : Period Tracker

> Luna is a simple, private period and ovulation tracker that works
> entirely offline — no account, no cloud, no ads.
>
> Log your period start and end dates, and Luna estimates your next
> period, predicted ovulation day, and fertile window based on your own
> cycle history.
>
> Why Luna:
> • 100% offline — the app has no internet permission at all
> • Your data never leaves your device — nothing is collected, shared, or sold
> • No account or sign-up required — open the app and start logging
> • Clean calendar view with color-coded period, fertile window, and
> ovulation predictions
> • Adjustable average cycle length, period length, and luteal phase length
> • Delete all your data at any time, right from Settings
>
> Luna gives statistical estimates based on the dates you log — it is not
> a medical device and does not diagnose, treat, or guarantee contraception
> or conception outcomes. If you're trying to conceive, avoid pregnancy, or
> have irregular cycles, talk to a healthcare provider.