Privacy Policy – MK Card Counter

Last updated: March 18, 2026

1. Overview

MK Card Counter is a browser extension designed to enhance the user experience on the MAGUS card search websites by adding card counting and filtering functionality.

This extension does not collect, store, or transmit any personal data.

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2. Data Collection

The extension does not collect any personally identifiable information, including but not limited to:
	•	Name
	•	Email address
	•	Location
	•	Browsing history
	•	Authentication data

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3. Local Data Storage

The extension stores user-specific data (such as card counts and filter settings) locally using Chrome’s storage.sync API.

This data:
	•	Is stored within the user’s browser
	•	May be synchronized across the user’s devices via their Google account
	•	Is not accessible to the developer
	•	Is not transmitted to any external servers

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4. Data Sharing

The extension does not share any data with third parties.

No data is sold, transferred, or processed outside of the user’s own browser environment.

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5. Third-Party Services

This extension does not use any third-party analytics, tracking tools, or external services.

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6. Permissions

The extension requires access to specific websites (mk.cardcat.spacebar.hu and lapkereso.spacebar.hu) solely to modify the page content and provide its features (card counting and filtering).

The extension also uses Chrome’s storage permission to save user preferences locally.

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7. Security

All data remains within the user’s browser environment and is handled using standard Chrome extension APIs.

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8. Changes to This Policy

This privacy policy may be updated in the future. Any changes will be reflected on this page with an updated revision date.

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9. Contact

If you have any questions regarding this privacy policy, you may contact the developer via the Chrome Web Store listing.
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