Privacy Policy

What we store, what we measure, and what the ads collect

Effective 6 October 2026 (version 1.2) · Applies to the Mindathlon mobile app for iOS and Android

The short version

Your scores, streaks and settings stay on your device — we run no servers and never see them. To find bugs and improve the game, the app sends anonymous usage statistics and crash reports through Google Firebase; you can switch this off in Settings. Mindathlon is free and paid for by advertising, and those ads are served by Google AdMob, which does collect data about your device. This page covers all three, and how to limit them.

What the app stores on your device

• Your settings — interface language, theme, colour-blind mode and whether you share usage statistics.
• Your scores — for each finished marathon, the difficulty and the total time.
• Daily Marathon results — the times of the daily marathons you played, your current streak and your longest streak.
• Practice best times — your best time for each stage and difficulty.

This is written to your device's local storage. It is not uploaded, not backed up to us, and we cannot see it. Clear it any time from Scores → Clear scores; deleting the app removes it permanently.

Usage statistics and crash reports

From version 1.2, Mindathlon uses Google Firebase Analytics and Firebase Crashlytics to understand how the game is played and to fix crashes. What is sent:

• Gameplay events — a marathon or practice run started, finished or abandoned, with its type, difficulty, duration and stage; a daily result shared (not its content); your answer to the in-app rating question; which screens were opened.
• Two settings — the app language and whether colour-blind mode is on.
• Crash reports — when the app crashes: the technical error, device model, operating system and app version.
• Standard Firebase data — a random app-instance identifier generated by Firebase, the country derived from your IP address, and device type, operating system and app version.

What is not sent: your name, e-mail, contacts, precise location, the content of anything you share, or your device's advertising identifier. Analytics runs with advertising-ID collection turned off, the data is not linked to your identity, and it is not used for advertising or tracking. We only see aggregate reports.

Google processes this data on our behalf under the Firebase privacy and security terms.

To stop it, turn off Settings → Privacy → Share usage statistics in the app. Both statistics and crash reports stop immediately, and the game works exactly the same.

Advertising

One full-screen ad appears at the end of a completed marathon. Never during a stage, never on a timer.

Ads come from Google AdMob. To select and measure them, Google may collect:

• Your device's advertising identifier
• Approximate (coarse) location, derived from your IP address
• Device and diagnostic information, such as model, operating system and crashes
• Your interaction with the ad — whether it was shown, viewed or tapped

Google handles this data under its own terms. See Google's Privacy Policy and how Google uses data from apps that use its services. We receive only anonymous, aggregate revenue reports — nothing that identifies you.

We ask Google to keep the ads shown in Mindathlon at a general-audience content rating.

Your choices

• On iOS, the app asks for tracking permission on first launch. Decline and the advertising identifier is not used, so ads become non-personalised. You can change your answer any time in Settings → Privacy & Security → Tracking.
• On Android, you can reset or delete the advertising ID in Settings → Google → Ads.
• In the EU, UK and other consent regions, a consent form appears before any ad is requested, and your answer is respected.

Declining does not restrict the game. You keep every stage, every difficulty and the whole scoreboard — the ads simply become less relevant.

Internet connection

Mindathlon works without an internet connection. When a connection is available, ads are loaded and any queued statistics and crash reports are sent; your scores and results never leave the device.

Sharing a result

When you finish a marathon you can tap Share. This opens your device's own share sheet with a short text: the difficulty or Daily Marathon number, your total time and, for the daily, one coloured square per stage, your streak and a link to this website. Nothing is sent until you choose an app to send it to, and where it goes from there is governed by that app's privacy policy, not ours.

App stores

Mindathlon is distributed through the Apple App Store and Google Play. Apple and Google collect their own download and usage statistics as part of running those stores, under their own privacy policies. We receive only anonymous aggregate reports.

Children

Mindathlon is suitable for all ages but is not directed at children, and it is not enrolled in the Kids Category or Google Play's Families programme. We do not knowingly collect personal data from children. If you believe a child's data has been collected through the app, write to us and we will look into it.

Your rights

Data-protection laws such as the GDPR and Turkey's KVKK give you rights to access, correct and delete your personal data. We hold no data that identifies you: the game data sits on your device under your control, the anonymous statistics and crash reports are processed by Google Firebase for us, and the advertising data sits with Google. You can stop the statistics with the in-app switch above; to exercise rights over the advertising data, use the controls above or contact Google directly.

Changes to this policy

If a future version changes what the app stores or transmits, this page is updated before that version is released, and the effective date above changes with it.

Contact

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