Privacy Policy

Last updated: 4 November 2026

1. Information We Collect

We collect the information you give us, such as your email address when you create an account and the LEGO sets you add to your collection. If you sign in with Google or Facebook, we receive your name, email address and profile picture from that service. We also collect usage data, such as the pages you visit, clicks, your device and browser type and an approximate location derived from your IP address, to understand how the site is used and to fix problems.

2. How We Use Your Information

Your information is used to:

  • Provide and maintain the Service
  • Save your LEGO collection and calculate buildable sets
  • Send important service-related notifications
  • Improve and optimize the user experience
  • Measure how the site is used and find errors, with the services listed below

3. Data Storage

Your data is stored securely on our servers. Collection data is associated with your account and can be deleted at any time by removing sets or deleting your account.

4. Third-Party Services

We use the following services to run the site:

  • Google and Facebook — if you choose to sign in with them
  • Vercel — hosts the website and provides cookieless visitor statistics (Vercel Web Analytics)
  • Railway — hosts the backend and the database
  • Cloudflare — delivers the site and its images and protects it against abuse
  • Google Analytics 4 — usage statistics (see Cookies)
  • Microsoft Clarity — usage statistics and recordings of how pages are used (clicks, scrolling and mouse movement), to find usability problems (see Cookies)
  • Sentry — error reports when something breaks on the site
  • Resend — sends account and notification emails
  • Rebrickable — some part images are loaded from Rebrickable's image server, which receives your IP address

We do not sell your personal data to third parties.

5. Affiliate Links

Some links to LEGO.com, such as Pick a Brick, are affiliate links through the Daisycon network. If you buy something after clicking one, we may earn a commission at no extra cost to you. We record which of these links are clicked, so we know which links are useful. After you click, Daisycon and LEGO may set their own cookies; their privacy policies apply on their sites.

6. Cookies

We use essential cookies and local storage to keep you signed in and to remember settings such as your language. Google Analytics 4 and Microsoft Clarity load during your visit in a cookieless mode: they do not set cookies, but they do receive information about your visit (see section 1). Only if you accept analytics cookies do they also set cookies (such as _ga, _clck and _clsk), so that a later visit can be recognised. You can change your choice at any time.

7. Your Rights

You have the right to access, correct or delete your personal data, and to object to or restrict how we use it. You can remove sets from your collection in the app and delete your account in your settings. For any other request, email [email protected]. You can also file a complaint with the data protection authority in your country.

8. Changes to This Policy

We may update this Privacy Policy from time to time. We will notify you of any significant changes.

9. Contact

For privacy questions or requests, email [email protected].

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