At Period Tracker, we believe your health data is strictly yours. We have built this application with a 100% "Local-First" architecture. We do not track you, we do not monitor you, and we do not collect any of your data.
We do NOT collect, upload, share, or sell your personal data. There are no databases, no cloud servers, and no remote backups managed by us. Every piece of information you log—including your cycle dates, symptoms, moods, and notes—remains exclusively on your device's local storage.
We use NO third-party tracking scripts, NO analytics tools, and NO advertising identifiers. Your usage of the app is completely invisible to us and to everyone else.
The app relies entirely on your device's local storage to save your cycle history. This data never leaves your phone. If you uninstall the application, all of your associated data is permanently destroyed. You are the sole custodian of your information.
All calculations, cycle predictions, and notification schedules are generated locally on your device's processor. We do not use remote push servers to trigger reminders. No data is ever transmitted to the internet to figure out when your next period or ovulation will occur.
Because we do not have servers and we do not possess any of your data, you have total, uncompromising control over it. You can export, modify, or permanently delete your data at any time directly within the app.