Furmath
Furmath collects nothing.
There are no accounts, no sign-in, no analytics, no advertising and no third-party code in this app. Furmath makes no network requests at all — the puzzles are built into the app itself, so it works with no connection.
Your progress is kept on your device only: which solutions you have found, how long you have spent on each board, how many checks came out wrong, and whether you asked to see the answers. None of it leaves your phone. It is stored in the app's own storage, and deleting the app deletes all of it.
If you tap Share, your device's own share sheet opens with a short summary of your day. You choose whether to send it and who to. Furmath does not see it and keeps no record of it.
Because Furmath collects no information from anyone, it collects none from children either.
If this ever changes, the change will appear here and at furmath.com/privacy before it takes effect.
hello@furmath.com