Privacy Policy

Lumi Blocks · NexPlay Studios Ltd · Effective 11 November 2026

This privacy policy explains how Lumi Blocks (the "game"), published by NexPlay Studios Ltd, a company registered in England and Wales ("we", "us"), handles information about you. We are the data controller for the game.

The short version

We do not ask for your name, email, contacts, photos or location, and the game has no accounts. Your progress is saved only on your device. The game is free and shows ads through Google AdMob, and it records anonymous play statistics through Google Analytics for Firebase so we can improve the levels. Google collects some device data for these purposes, as described below.

Information stored on your device

The game saves your level progress, stars, boosters, daily-gift streak and settings (sound, music, vibration) in the app's local storage on your device. This information is never sent to us. You can delete it at any time with Settings → Reset progress, by clearing the app's storage in Android settings, or by uninstalling the game.

Advertising (Google AdMob)

We use the Google Mobile Ads SDK (Google AdMob), provided by Google Ireland Limited / Google LLC, to show ads. When an ad is requested or shown, the SDK automatically collects and shares the following with Google:

DataWhat it is
Device and account identifiersYour Android advertising ID, app set ID, and, where applicable, other identifiers related to accounts signed in on the device.
IP addressYour device's IP address, which may be used to estimate its general (approximate) location.
Product interactionsSuch as app launches, taps and ad video views.
Diagnostic informationSuch as crash logs, app launch time, hang rate and energy usage.

This data is used for advertising, analytics and fraud prevention. It is encrypted in transit (TLS). We do not receive it in a form that identifies you, and we do not sell it.

You can learn how Google uses this information at policies.google.com/technologies/partner-sites and read Google's privacy policy at policies.google.com/privacy.

Play statistics (Google Analytics for Firebase)

To find out which levels are too easy or too hard, the game sends anonymous gameplay events through Google Analytics for Firebase, provided by Google Ireland Limited / Google LLC. These events say things like "level 12 started", "level 12 finished with 2 stars", "a booster was used" or "the daily gift was opened". They never include your name, email address or anything you type.

Along with these events, the Firebase SDK collects an app-instance identifier, your Android advertising ID (if available), general device information (such as model, operating system version, language and country) and the approximate region derived from your IP address. We only see this information as combined statistics, not as a record of what one identifiable person did.

UK, EEA and Switzerland: storing and using analytics identifiers is switched off by default and is only switched on if you agree in Google's consent form. Until then, only anonymous signals without identifiers may be sent. You can change your choice at any time in Settings → Privacy options.

Your choices about ads

Legal bases (UK GDPR / EU GDPR)

Where personalised advertising requires consent, we rely on your consent, collected through Google's consent form. For play statistics that use identifiers we also rely on your consent where the law requires it. For non-personalised ads, ad measurement, fraud prevention and anonymous statistics, we rely on our legitimate interests in funding a free game, improving it and keeping it secure.

Children

The game is not directed at children under 13, and we do not knowingly collect personal information from children. If you believe a child has provided personal information through the game, please contact us and we will help remove it.

Retention and deletion

We do not keep any personal data on our own servers. Data stored on your device stays there until you reset your progress, clear the app's storage or uninstall the game. Data collected by Google AdMob and Google Analytics for Firebase is kept and deleted according to Google's own retention policies (we keep analytics event data for the shortest period Google offers, 2 months); you can also reset your advertising ID at any time as described above.

Security

The game does not transmit your saved progress anywhere. Data sent by the Google Mobile Ads and Firebase SDKs is encrypted in transit using TLS. The game requests no sensitive device permissions (no camera, microphone, contacts, files or location).

Your rights

Depending on where you live, you may have rights to access, correct, delete, restrict or object to the processing of your personal data, and to withdraw consent. Because we hold no personal data about you ourselves, most requests are best handled through the controls above or directly with Google. You also have the right to complain to the UK Information Commissioner's Office (ico.org.uk) or your local data protection authority.

Changes to this policy

If we change this policy we will update the effective date above, and for significant changes we will let players know inside the game.

Contact

NexPlay Studios Ltd. For any privacy question or request, email us at hello@nexplaystudios.com.