Privacy Policy

Linear Algebra Visualizer

Linear Algebra Visualizer does not collect or store your personal information, other than the anonymous usage data described below. We do not track you across other apps or services, and we do not build a profile of you.

To manage purchases and subscriptions, the app uses RevenueCat, a third party service. When you make a purchase, RevenueCat processes your purchase and subscription history on our behalf. This is used only to deliver the content you bought, restore your purchases, and prevent fraud. RevenueCat does not receive your name, email address, or contact details, and your purchase data is not used to track you.

RevenueCat is based in the United States, so this information may be processed outside the United Kingdom and the European Economic Area. You can read how RevenueCat handles data in their privacy policy at https://www.revenuecat.com/privacy.

Use of TelemetryDeck to analyze app usage

We use the privacy-friendly analytics service TelemetryDeck (provider: TelemetryDeck GmbH, Von-der-Tann-Str. 54, 86159 Augsburg, Germany) to analyze usage data. The use is based on Art. 6 para. 1 lit. b GDPR, as we require reliable and efficient tools for collecting app usage data in order to fulfill the contract with you, our customer.

What data is transferred?

The data processed by TelemetryDeck is completely anonymized and does not allow any conclusions to be drawn about personal information.

The following data is collected, among other things:

• an anonymized, untraceable user ID (per app installation),
• actions defined by the app publisher (e.g. “app launched”, “settings opened”),
• a rounded timestamp (to the nearest hour),
• device metadata (e.g. system version, app version, device type),
• additional metadata defined by the app publisher (e.g. “number of items in the database”).

What is not stored?

• No IP addresses (not in logs, not in the database),
• no cookies or tracking technologies,
• no persistent identifiers that could be traced back to individuals.

The source code of the TelemetryDeck SDK is completely open source and available on GitHub: https://github.com/TelemetryDeck

Further information on the exact data processing by TelemetryDeck can be found at https://telemetrydeck.com/privacy and at https://telemetrydeck.com/docs/guides/privacy-faq/.

For support, contact niclasjeppsson@gmail.com

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