Track your cycle.
Trust no one.

A period and cycle tracker that keeps everything on your phone. No account, no cloud, and it works offline. Your data is encrypted on your device, and only you hold the key.

Coming soon on the
App Store Coming soon on
Google Play
Launching soon. Pay once, no subscription.
No accountNo cloudNo ads
Private by design

Privacy is not opt in.
It is baked in.

Most apps send your most personal data to their servers.
We have no server to send to.

📵

Nothing leaves your phone

No account and no cloud. There is no server to send your data to, and the app works fully in airplane mode.

🔐

Encrypted on your device

Your entire log lives in a database encrypted at rest with AES. Without your PIN, the file on disk is unreadable.

🔑

You hold the only key

The encryption key is unlocked by your PIN and never stored in the clear. We keep no copy and cannot recover it.

👤

Face ID and Touch ID

Unlock in an instant with biometrics, backed by your device secure enclave. A PIN is always your fallback.

🕶️

Decoy PIN

Set a second PIN that opens a separate, empty vault. If you are ever forced to unlock the app, it reveals nothing real.

🚫

No tracking, ever

No analytics, no advertising IDs, no third-party code watching you. There is nothing to sell because we collect nothing.

How it protects you

Your data cannot leak from a place it never goes.

  • ✦On-device only. Cycle dates, symptoms, moods, and notes are stored locally and encrypted. They are never uploaded.
  • ✦Hidden in the app switcher. The screen is covered the moment the app moves to the background, so previews never leak.
  • ✦Auto-lock. The app relocks on its own, so a glance at your phone never shows your data.
  • ✦Backups stay yours. Optional backups are encrypted with a passphrase only you know, then handed to you as a file.
Privacy. Period. home screen showing the cycle wheel and predictions
Everything you expect

A full tracker, minus the surveillance.

All the tracking the big apps offer, with predictions that run on your phone, not in someone else's data center.

🩸

Periods and flow

Log your period and flow intensity with a tap. The calendar fills itself in.

🔮

Predictions

Next period, fertile window, and ovulation, calculated from your own history on your device.

🌊

Symptoms and moods

Track cramps, headaches, cravings, energy, mood, and more across your cycle.

📅

Cycle calendar

See past periods and predicted days at a glance, color coded by phase.

📊

Insights

Average cycle length, period length, and how regular you are, over time.

🔔

Discreet reminders

Optional local reminders that never mention your cycle in the notification text.

Fair and simple

Pay once. Own it.

No subscription. No upsells. The big trackers charge every month because your data is the product. Here it is not.

$5.99 once
One-time purchase
  • ✦ Every feature, forever
  • ✦ No subscription, no ads
  • ✦ Free updates
  • ✦ Works offline, on your device

Launch price. Final pricing may vary by region.

Good questions

Frequently asked

Do you have access to my data?

No. There is no account and no server. Your data never leaves your phone, so there is nothing for us to see, store, or hand over. Even if someone asked us for your records, we would have none.

What happens if I lose my phone?

Your data is encrypted and locked behind your PIN, so a lost phone does not expose it. You can create an encrypted backup file at any time, protected by a passphrase only you know, and restore it on a new device.

Is it really encrypted?

Yes. The whole database is encrypted at rest using AES. The key is derived from your PIN and is never stored in readable form. Without your PIN, the file on disk is unreadable.

What is the decoy PIN?

You can set a second PIN that opens a separate, empty vault. If you are ever pressured to unlock the app, entering the decoy PIN shows a blank tracker with none of your real data.

Is this medical advice?

No. Predictions are estimates based on your logged history and should not be used for contraception, diagnosis, or medical decisions. Talk to a healthcare professional for medical guidance.

Your body. Your phone.
Nobody else.

Coming soon on the
App Store Coming soon on
Google Play