When I looked for a way to track my cycle, I was shocked by what I found. Most apps required me to create an account, upload my data to their servers, and agree to 'anonymized' data sharing. As an engineer, I know that once your data is on someone else's server, you lose control of it.
I didn't want my personal health history to be a product for sale. I wanted a digital version of a paper notebook—something only I could see.
I built the Secret Period Tracker to be different. It is a 'Local-Only' app.
Your Phone is the Vault: Every date, symptom, and note you enter stays on your iPhone’s local storage.
No Servers: There is no 'Lanasun Server.' I don't have a database of your information because I don't want it.
Invisible to Others: Your data isn't synced to a cloud where it can be leaked or subpoenaed. It lives and dies on your device."
There is no 'Sign Up' or 'Login' screen. You start tracking immediately.
Tap the calendar to add your cycle info. It’s fast, clean, and distraction-free.
Close the app knowing your data is exactly where it belongs: with you.
No Accounts: You never have to provide an email or password.
No Internet Required: The app works perfectly in Airplane Mode. It never "calls home."
No Third-Party Tracking: I don't use Google Analytics or Facebook pixels.
No Data Selling: I can't sell what I don't have.