Privacy Policy

MindGrid: Daily Logic Puzzles · by MZA Games · Last updated: November 10, 2026

Summary

• MindGrid has no accounts and we (MZA Games) do not run any server that collects your data.
• Your game progress stays on your device.
• The Android app shows ads from Google AdMob. Google may collect certain device data to show and measure those ads, as described below.
• The web version (in a browser) shows no ads.

Information stored on your device

Your game progress (solved puzzles, times, streaks, settings and in-progress games) is saved only in your device's local storage so you can continue where you left off. This data is not sent to us. You can erase it any time in Settings → Reset progress, by clearing the app's data, or by uninstalling the app.

Advertising (Android app)

The MindGrid Android app is free and supported by ads served by Google AdMob, a service of Google LLC. Ads appear as a banner on menu screens and as an occasional full-screen ad between puzzles (never while you are solving).

To serve, measure and prevent fraud in these ads, Google AdMob may automatically collect and process:

• Device identifiers, including the Android advertising ID
• IP address and approximate location derived from it
• App interaction data (for example ad views and taps) and diagnostic information (for example crash logs and performance)

This data is collected and processed by Google, not by MZA Games, and is transmitted encrypted. Depending on your choices and region, ads may be personalised or non-personalised. Learn how Google uses this data: How Google uses information from apps that use its services and Google's Privacy Policy.

App updates (Android app)

When you open the Android app, it asks Google Play whether a newer version of MindGrid is available, using Google Play's in-app updates service. If one is, the app offers Update now or Cancel. This check is handled by Google Play on your device; MZA Games receives no data from it.

Your choices

• Consent (EEA, UK and Switzerland): the app asks for your consent through Google's consent form before personalised ads are shown. You can change your choice any time in Settings → Ad privacy choices.
• Advertising ID: you can reset or delete your advertising ID in your Android settings (Settings → Privacy → Ads), which limits personalised advertising.
• Google's ad settings: adssettings.google.com.

Permissions

The Android app uses internet access (to load ads) and the advertising ID permission (used by Google AdMob). It does not access your contacts, precise location, camera, microphone or files.

Hosting

The game's files are delivered from GitHub Pages. Like any web server, GitHub may process technical data such as your IP address in order to deliver the files and protect its service. See GitHub's Privacy Statement. MindGrid itself receives none of this data.

Sharing

If you tap Share, the game puts a short text summary of your results (for example your solve times) on your clipboard or in your device's share menu. Nothing is sent anywhere unless you choose to paste or share it.

Children

MindGrid is intended for players aged 13 and over and is not directed at children. We do not knowingly collect personal information from children under 13.

Changes

If this policy changes, the updated version will be posted on this page with a new "Last updated" date.

Contact

Questions about this policy: email mzagames@proton.me.