Private Period Tracker: A Checklist Before You Trust an App

Start with the data path

When you log a period day, symptom, mood, temperature, pregnancy note, or perimenopause symptom, ask one question: where does that record go? If the answer is "to the company's servers," the privacy problem becomes a company problem. If the answer is "encrypted on your device," the risk profile changes.

The private tracker checklist

1. No required account. You should not have to attach reproductive health data to an email address.
2. No ads. Ads create incentives to measure, profile, segment, and retarget people.
3. No analytics SDKs. Analytics may be useful for product teams, but it is not necessary for cycle tracking.
4. Encrypted local storage. Local storage should still be protected at rest.
5. User-directed exports. Reports and backups should be created only when you ask for them.
6. Clear deletion path. If there is no account, deleting local app data should actually remove the local record.

What Local Cycle does differently

Local Cycle is designed for people who want an offline period tracker that can still handle real life: irregular cycles, PCOS context, perimenopause tracking, pregnancy, pregnancy loss, postpartum recovery, encrypted backups, and private doctor reports.

The privacy model is not "trust us with your account." It is "avoid collecting server-side data in the first place."

Good privacy can still be practical

Privacy should not mean a blank notebook in app form. A private period tracker still needs prediction windows, history charts, symptom correlations, reminders, backups, and doctor reports. The difference is where those features run and who controls the output.

Read Local Cycle's privacy policy