Notifications fire while the app is open or installed to your home screen (Android Chrome works best; iPhone requires adding to Home Screen in Safari and iOS 16.4+). For a guaranteed reminder on any phone, download the .ics file and import it into your calendar app.
Add this app to your home screen for a full-screen experience: on Android tap ⋮ → Add to Home screen; on iPhone tap Share → Add to Home Screen.
New phone, reinstalled, or showing twice on the PAX board? This finds the profile with your F3 name and region, pulls its days onto this phone, and combines any duplicates.
Everything is stored on this device only. Nothing is uploaded.