Privacy Policy and Personal Data Processing

Last Updated: July 3, 2026

By using the Market Ninja extension and logging in via Yandex or by email, you automatically accept the terms of this Policy and give your Consent to the processing of personal data (more details in Section 1).

Summary (TL;DR)

  • For the account: When you log in via Yandex, we receive your email and basic profile information (name, avatar); when you log in by email, we receive only your email address. This is used to create an account and synchronize your subscription;
  • Your parsing data is secure: Product data collected from marketplaces is stored only on your device and is never sent to our servers;
  • No tracking: We do not collect your browsing history, passwords from marketplace accounts, or search queries;
  • Analytics: We use anonymized analytics to improve the extension's performance;
  • No data selling: We never sell collected information to anyone.

By clicking the "Sign in with Yandex" button, or by entering their email address to sign in (to receive a one-time password/code or a magic link) in the extension interface, the User freely and explicitly consents to the Operator (details specified in Section 8 of this Policy) processing their personal data.

Processing purposes:

  • Creating an account and providing access to Market Ninja functionality;
  • User identification and access level management (Free/Premium);
  • Sending informational and service messages, as well as news about extension updates via email.

The processing of personal data is carried out in accordance with Federal Law No. 152-FZ "On Personal Data" dated July 27, 2006.

This consent is valid from the moment of acceptance until the User stops using the Service (deletes their account) or until the consent is withdrawn, whichever occurs first.

2. What data do we collect and why?

We collect a limited amount of data to ensure the service operation and its improvement:

a) Account Data (Personal Data)

When authorizing via Yandex, our database securely stores:

  • Your email address;
  • First and last name (specified in the profile);
  • Profile picture URL (avatar).

When authorizing by email (using a one-time password/code or a magic link), we store only:

  • Your email address.

b) Data for extension operation (Stored locally)

  • Collected product data: Information that the parser collects from marketplace sites is temporarily processed in the browser's session storage (chrome.storage.session) for export to Excel, CSV, or JSON. This data is deleted when the browser is closed and is not available to us.
  • Cached settings: Local interface parameters of the extension.

c) Anonymous data for analytics

To monitor stability and feature popularity, we use Yandex Metrika. The following is transmitted there:

  • Visited page URL (page_location): To check parser activation on supported sites.
  • Anonymous events: "Parsing started", "File export", "Authorization error".
  • Technical information: Extension version, browser interface language, operating system type.

3. What data do we strictly NOT collect?

  • Passwords, logins, and cookies from your seller or buyer personal accounts on Wildberries, Ozon, Lamoda, and other sites.
  • Browsing history not related to the extension's operation.
  • Data you enter into forms on websites.
  • Bank card payment data (all transactions are securely processed via the YooKassa payment gateway).

4. How do we protect and share data?

Your profile data (email, name) is stored in a secure cloud infrastructure with modern encryption standards.

We do not transfer data to third parties, except for our technical partners (cloud database providers, transactional email services, payment systems), solely within the framework of ensuring service operability and maintaining confidentiality.

5. Browser Permissions

The extension requests the following permissions for correct operation:

  • storage: To store your local settings and authorization token.
  • tabs: To determine the current tab URL and activate the parser.
  • scripting: To interact with the marketplace page and retrieve publicly available product data.
  • downloads: To save files exported by you.
  • Host Permissions (for lamoda.ru, wildberries.ru, ozon.ru): So that extension scripts have the right to run on these sites. We do not request access to all websites on the internet.

6. Your rights and data deletion

You have the full right to manage your data:

  • Uninstalling the extension: Will result in the deletion of all local data from your browser.
  • Account deletion: You can request the full deletion of your account and all related information from our servers at any time by writing to our contact email. Data will be deleted within the time limits established by the legislation of the Russian Federation, but no later than 30 days from the date of withdrawal of consent.

7. Changes to the Privacy Policy

We may update this policy as functionality develops. We will inform you about all significant changes via email newsletter, description in the Chrome Web Store, or notifications inside the extension interface.

8. Contact Information

If you have questions regarding the processing of your data, please contact us:

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