Privacy Policy

Who we are

Blackjack Master is a free educational app that teaches mathematically optimal blackjack decisions. It does not offer gambling, real-money wagering, or prizes of any kind.

Data we collect

We do not ask you to create an account and we do not collect names, e-mail addresses, payment details, or any other personal information. There is no user database and no analytics service operated by us.

Data stored on your device

The app stores a small number of settings locally on your device using your browser's local storage: your chosen interface language, your chip bankroll and training progress, and your sound preference. These values never leave your device and are not transmitted to us or to anyone else. Clearing your browser data (or uninstalling the app) removes them permanently.

This local processing is separate from, and independent of, any processing carried out by third-party advertising providers described below.

Advertising

The app is free of charge and is funded through advertising. Depending on where and how you use it, advertising is delivered as follows:

• Web version. The website may load a third-party advertising service that serves banner or video ads in the browser.
• Android version. The Android app uses Google AdMob, including rewarded video ads (for example, the "free chips" feature).

Third-party services and the data they process

Advertising providers are independent data controllers. When an ad request is made, the provider (or its partners) may process technical data such as your IP address, device and browser information (device model, operating system, screen size, language, approximate region derived from your IP), and, on the Android app, your advertising identifier (Advertising ID / Google Advertising ID). This data is used to serve ads, limit how often the same ad is shown, measure performance, and detect fraud. Blackjack Master does not access this data and never shares your local settings (bankroll, progress, language) with advertising providers.

For details on how Google processes data in connection with AdMob, please visit Google's Privacy & Terms: https://policies.google.com/technologies/ads. Third-party web advertising services used in the browser version publish their own privacy notices on their respective websites.

Cookies and similar technologies

Advertising providers may use cookies, pixels, device identifiers, and similar tracking technologies to deliver and measure their ads. These technologies are managed by the providers themselves, not by Blackjack Master. In the web version, where required by applicable law, you will be asked for consent before non-essential cookies or similar technologies are used, and you may change or withdraw your consent at any time. On Android, you can limit ad tracking by resetting or deleting your Advertising ID in your device settings (Settings → Privacy → Ads).

Consent and your choices

Where required by applicable law (for example, in the European Union and the EEA), advertising that involves tracking technologies is only activated after you have given your consent through a consent notice, and you may refuse or withdraw that consent at any time without losing access to the app's features.

Children

The app is intended for adults (18+). It simulates card play for educational purposes only and is not directed at children.

Your rights

Because Blackjack Master itself holds no personal data, there is nothing for us to access, correct, or delete. Requests relating to data processed by advertising providers should be addressed directly to those providers, using the links and mechanisms described above (Google's privacy centre and Ads Settings, or the privacy notice of the relevant provider, and your device's advertising identifier settings).

Contact

For privacy questions about this app, contact the publisher through the contact details shown on the app's store listing.