The short version: Play as a guest and nothing is collected — your progress lives on your device only. Sign in and we store the minimum needed to sync your account across devices: email, username, scores, and game history. The app shows no ads, and counts how often features are used with no identifier of any kind attached. Our website (balliq.app) uses privacy-friendly cookieless analytics, records a few first-party product events, and uses Microsoft Clarity session analytics — which, in Europe, we load only if you say yes. We are not currently showing ads anywhere, and the app itself stays ad-free and cookie-free. We never sell your data.
Guest mode — open Ball IQ without signing in. Your scores, streaks, settings and game history are stored only in your device's local storage. Nothing is sent to our servers. If you clear your browser data or uninstall the app, that progress is gone.
Signed-in mode — sign in with email to back up your progress and play online multiplayer. We store the minimum needed to deliver those features (detail in §2 below). You can delete your account at any time from Settings → Account → Delete Account, which removes everything we hold about you.
When you have an account, the following lives on our servers (hosted by Supabase, see §5):
That's the full list. We do not collect your real name, location, device fingerprint, or any contact list. We never sell or share this data with third parties for marketing.
We use Sentry to catch crashes and bugs. When something goes wrong in the app, Sentry receives a stack trace, the browser version, and a short trail of recent actions ("breadcrumbs") — no question text, no personal data. We strip your email and auth tokens from every event before it leaves your device. We use this only to fix bugs, never for tracking.
The Ball IQ app uses no third-party analytics tools, tracking pixels, or advertising SDKs. It shows no ads and works with no ad networks. This is enforced in code: the ad and analytics scripts are blocked from ever loading inside the app.
The app does count, anonymously, how often its features are used — for example “a daily puzzle was finished” — so we can tell which parts are worth improving. These counts carry no identifier of any kind: no device id, no advertising id, and not your account either. Nothing links one count to another, so they cannot be assembled into a picture of you, and we have no way to look up what any individual person did. This is enforced on our server rather than only in the app, so it holds even for an older version still installed on a device.
Our website (balliq.app) uses Vercel Web Analytics — a privacy-friendly, cookieless analytics service — to understand aggregate traffic, such as how many people visit a page. It sets no cookies, does not track you across other websites, and does not identify you personally.
Our website also records a small number of first-party product events of our own — for example “a quiz was started” or “the app link was tapped” — so we can tell which parts of the site are working. Each event stores only its name, the surface it happened on, and a random identifier we generate on your device (stored in your browser as biq_vid) so a single visit hangs together. That identifier is a random value, not derived from anything about you or your device: it is not a fingerprint, it is never linked to your account or email, it is not shared with anyone, and clearing this site’s data removes it. No question text and no personal data is recorded. This runs on the website only.
Our website (balliq.app) also uses Microsoft Clarity to understand how visitors interact with the site — it captures anonymised interaction signals (clicks, scrolls, mouse movement) and session replays with typed text masked, which we use to find and fix confusing parts of the site. Clarity may set cookies and similar identifiers. This runs on the website only — never in the app. If you are visiting from Europe, Clarity does not run at all unless you allow it: we ask you once, on your first visit, and nothing loads until you choose. Choosing “Decline” means Clarity is never loaded, and the rest of the site works exactly the same. You can change your mind by clearing this site’s data in your browser, which makes us ask again. See Microsoft's privacy statement at privacy.microsoft.com.
We do not currently display ads anywhere — not on the website and not in the app. If that changes we will update this page first. The paragraph below describes how Google AdSense would work on the website only if we enable it. To serve and measure ads, Google and its partners may set and read cookies or similar identifiers in your browser, and — where you agree — use them to show more relevant ads. This applies to the website only; the app remains ad-free and sets no advertising cookies. We are not currently serving ads, so no advertising cookies are set. The consent prompt European visitors see covers Microsoft Clarity only, described above — it is not an advertising prompt. Before we enable ads for visitors in the EEA, UK or Switzerland, we will ask for your consent choices first, and you will be able to change them at any time. You can review how Google uses data from sites that use its services at policies.google.com/technologies/partner-sites, and manage ad personalisation at adssettings.google.com.
Ball IQ is not directed at children under 13. Guest mode requires no account or personal data. To sign in you must provide an email address — please don't sign in if you are under 13. The app's content is suitable for all ages.
If we make changes to this privacy policy, we will update the date at the top of this page. Continued use of the app after any changes constitutes acceptance of the new policy.
If you have any questions about this privacy policy, please contact us at: privacy@balliq.app
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