Last updated: 10 August 2026
The short version: nothing you put into this app ever leaves your device, because there is nowhere for it to go.
Teams, player names, initials, shirt numbers, positions and tactics are saved in your own browser's storage, on your own device. The app has no server, no accounts, no sign-in, and makes no network requests for your data. The developer cannot see anything you enter — there is no mechanism by which it could be sent anywhere.
Coaches often enter children's names. Those names stay on the coach's device. They are only ever shared if the coach personally exports a file or a picture and sends it to somebody — which works exactly like sharing any other file they created themselves.
The app keeps a copy of its own code on your device so it works with no signal. That cached copy contains the app itself, never your data.
Settings → “Reset all data” removes everything the app has stored, or clear the site's data in your browser's settings. Either is complete — there is no copy anywhere else.
Questions about this policy can be raised on the project's GitHub page.