Your cycle stays on your phone.

A calm period tracker with honest predictions. Nemi has no server, so there is nothing to sell or leak.

FreeNo accountNo adsWorks offline
Get early access

On the App Store now · Google Play soon

Calendar with logged and predicted days
Today screen: Period in 8–12 days, most likely around Tue, Nov 10
Logging a day: bleeding, pain, mood
Early access

You're invited to test Nemi.

Nemi is almost ready. Try it for two weeks and tell us what you think.

1Join the group2Become a tester3Install, keep 14 days
1 · Join the testers group 2 · Become a tester 3 · Install Nemi

Android, in a minute: on the group page, sign in with the Gmail you use on the Play Store and tap Join group (next to "Nemi Testers", top of the page). Then tap Become a tester and install Nemi from Google Play. Please keep it for 14 days. It's how Google lets us launch.

On iPhone? Nemi is on the App Store, nothing to join.

Get Nemi for iPhone

Google runs the testers group; Nemi itself collects nothing. Leave any time.

Know what's coming

A range you can trust, not a guess dressed up as a date.

Nemi shows when your next period is likely, with the most likely day. Irregular cycles get a wider range, not a confident wrong date. The fertile window is marked as an estimate.

Log a day

A few taps, then back to your day.

Bleeding, pain, mood and body symptoms with clear icons. Turn on more when you want it, and switch off anything you never use.

Understand your cycle

Your patterns, in plain words.

Average cycle and period length, your shortest and longest cycles, and a one-page summary to show your doctor.

Private by design, not by promise.

There's no Nemi server to send your data to. What you log stays on your phone unless you share it yourself.

  • No accountNothing to sign up for.
  • No ads or trackingNo analytics, no ad networks.
  • App lockIts own Nemi PIN, plus Face ID or fingerprint.
  • Your backupA password-locked file only you keep.

Questions

Anything else? Write to privacy@nemicycle.com.

Is it really free?

Yes. No ads, no subscription, and everything you need to track your cycle is free.

What if I change phones?

Back up to a password-locked file and restore it on the new phone.

Can I use it for birth control?

No. Nemi's fertile window is an estimate, not a method of birth control.

Where is my data stored?

Only on your phone. Delete everything at any time in Settings.

Does Nemi use the internet?

No. On Android it doesn't even ask for internet access, so you can check it yourself in your phone's app settings.