Local-only period tracking
What "stored on your device" actually means
A cycle tracker does not need an account to be useful. Sometimes the simplest option is the kindest one: write down what happened, keep it on the device in your hand, and let you delete it when you want.
Local-only means fewer places for your notes to go
In open-cycle, your period dates, flow, symptoms, moods, and notes are saved in local storage on your phone or browser. The app does not need a login, an advertising ID, analytics, or a remote account for everyday tracking.
It does not mean magic
Local-only storage still lives on a real device. If you back up your phone, share your device, use a shared browser profile, or copy your notes somewhere else, those choices can move the data. The point is simpler: open-cycle is not built around sending your cycle notes to us.
Why this matters for period tracking
Period data can feel ordinary until it is not. A missed period, a symptom note, a pregnancy-related entry, or a medication note can be personal. Local phone-only cycle tracking keeps the default path smaller.
What to do next
Use open-cycle when you want a free, privacy-first period tracking app. Use Local Cycle if you want the larger one-time paid feature set. Use a clinician, not an app, for medical advice.