Last updated: June 2026
Nothing. The app does not collect, store, transmit, or share any personal information. There is no analytics, no tracking, no advertising, and no third-party code.
The app makes no network requests. All code, map data and historical data are bundled with the app and loaded locally. It works fully offline.
The app saves a single flag in your browser's localStorage to remember that you've seen the
one-time welcome tutorial, so it doesn't show again. This never leaves your device and you can clear it at
any time through your browser settings.
It is a static web page — it requests no permissions, has no backend, and runs entirely in your browser.
Because the app collects no data at all, it is safe for users of any age.
If this policy ever changes, the updated date above will change with it. Material changes will be noted on this page.
Questions? Reach out through the 42-apps project.