personal information

Last Updated: Aug. 27, 2025

 

This notice applies only to California residents under the California Consumer Privacy Act (CCPA) and California Privacy Rights Act (CPRA).

 

The CCPA/CPRA gives you the right to opt out of the “sale” of your personal information. While Mastery does not sell your personal information in the traditional sense (i.e., for money), we may use services that help deliver interest-based ads, analyze website traffic, and improve your shopping experience. These services may involve sharing personal information such as online identifiers, browsing activity, or device data with business partners, which could be considered a “sale” or “sharing” under California law.

 

How to Opt Out.

To request that Mastery does not “sell” or “share” your personal information, you may:

Email us at: support@hellomastery.com

 

Please note: Your choice will apply only to the device and browser you are using when you make the request, unless you are logged into your Mastery account. You will still see general advertising, but it will not be personalized based on your browsing behavior.

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More Information About Your Privacy Choices.

In addition to the CCPA rights for California residents, all users—wherever you are—can manage how data is collected and used by adjusting your own settings.

 

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Blocking Cookies in Your Browser.

Most browsers allow you to modify your settings to block or reject cookies, including cookies used for interest-based advertising. Instructions:

 

• Google Chrome Cookie Settings

• Firefox Cookie Settings

• Safari Cookie Settings

• Microsoft Edge Cookie Settings

 

 

Advertising Industry Opt-Out Tools.

You can also limit tracking and personalized ads by visiting:

 

• National Advertising Initiative Opt-Out

• Your Ad Choices (Digital Advertising Alliance)

• Your Online Choices (European Interactive Digital Advertising Alliance)

 

 

Mobile users can opt out of interest-based advertising through the AppChoices App.

 

Platform Opt-Out Tools.

Some platforms provide their own settings to manage personalization:

 

• Facebook Ads Preferences

• Google Ad Settings

 

 

Device & Mobile App Settings.

On your phone or tablet, you can limit ad tracking:

 

• Apple iOS

• Android

• Windows

 

 

Privacy-Focused Browsers & Tools.

You may also block trackers by using privacy browsers or extensions like Brave, Privacy Badger, Ghostery, or uBlock Origin.

 

 

Questions?

If you have any questions about your privacy rights or how your personal information is used, please contact us at support@hellomastery.com