Privacy Policy
Math Ball Runner: Learn — last updated November 11, 2026.
What this app is
Math Ball Runner: Learn is an educational game. You can play it without an account; apart from the anonymous usage statistics and the ads described below, nothing is collected or stored off your device unless you sign in.
What we collect when you sign in
Signing in with Google or Apple shares your name and email address with us through that provider. We store:
- a display name (shown in the game menu),
- answer statistics (which answers were chosen in each learning mode and whether they were correct), used to track learning progress,
- game run history (score, best streak, mode, and level for each finished run),
- online versus match results (who played, who won, and the round scores).
This data is stored with our database provider, Supabase. Answer statistics and run history are private to your account; versus match results are visible only to the two players in the match. The one public exception is the leaderboard, described below.
Signed-in players (and their grown-ups) can view this learning progress as a report inside the game. The report and its optional PDF download are generated entirely on your device from your own account's data — nothing in them is uploaded, shared, or sent anywhere.
What's public
If you choose a username, it appears on the game's leaderboard together with your best scores and streaks, visible to anyone who plays — signed in or not. Your username is also shown to other players in online multiplayer lobbies and matches. The username is one you pick yourself and is the only public identity: your real name and email address are never shown to other players.
Purchases
The web version offers a one-time purchase that removes ads and unlocks all worlds and games. Payment is handled entirely by Stripe, our payment processor — card details go to Stripe, never to us. So the unlock can follow your account across devices, we send Stripe your account's internal id with the checkout, and after a successful payment we store on your account that it owns the unlock, along with a reference to the Stripe checkout session. Stripe's own handling of payment data is described in Stripe's privacy policy. The mobile apps do not offer or process purchases.
Anonymous usage statistics
To understand how the game is used (which learning modes get played, how hard the questions are), the app sends anonymous usage events to PostHog, an analytics service: when the app is opened, each answer (the question, and whether it was right), each finished run (mode, level, score, streak), the steps of the unlock purchase flow (which locked world or game was tapped, checkout started, completed, or cancelled — no payment details and no account id), and when the progress report is opened or its PDF is downloaded (just that it happened — none of the report's contents). These events are never linked to you: they carry no name, email, or account — only a random id stored on the device. They are used for aggregate statistics only, never for advertising.
Advertising
The free version of the game may show ads on Android and on the web. The one-time unlock removes all ads, and the iOS app shows none. Because this is a kids' game, any ad is contextual and non-personalized: it is picked by what's on the screen, never by profiling the player. The ad networks are instructed to apply child-directed treatment under COPPA and to show only content rated for general audiences, and we never share a name, email address, account id, or advertising identifier with them.
Ads come only from networks certified for kids' apps: Google AdMob (Google H5 Games Ads in the web version), and possibly the kids-specialist networks Kidoz and SuperAwesome. Ads that offer an in-game reward (like an extra heart) are always optional. Taps inside an ad itself are handled by the ad network under the child-directed settings above — we pass it no information about the player — while the game's own purchase flow sits behind a grown-ups gate.
Our social media links
The game menu has buttons that open our YouTube, Instagram, and TikTok pages. Opening one leaves the game for that platform's own site or app, where that platform's privacy policy applies. The game sends those platforms nothing about the player — the button is just a link.
On your device
Game settings (mode, level, world, sound) and adventure progress are stored only on your device and are never uploaded. If you play without signing in, nothing is uploaded beyond the anonymous usage statistics described above.
What we don't do
- No personalized advertising and no ad trackers — any ads in the free version are contextual only, as described above.
- No analytics beyond the answer statistics and anonymous usage statistics described above.
- No selling or sharing of personal data with third parties. The only companies that handle any of it are the processors named above — Supabase (database and sign-in), Stripe (payments), and PostHog (anonymous statistics) — each only to provide its service to us.
The game and this policy page ship their fonts with the app — apart from ads in the free version, no fonts or other assets are loaded from third parties.
Your choices
You can play without signing in at any time. To delete an account and its stored data, email us and we will remove it.