Privacy Policy

LoL Build Sim (hereinafter "this site") respects user privacy and is committed to protecting personal information. Below is an explanation of how personal information is handled on this site.

User Authentication

This site offers OAuth authentication via Google or Discord accounts to enable build publishing and bookmark features. Information collected during authentication is limited to display name, email address, and profile image URL. This information is used solely for displaying build authorship and is not shared with third parties. Authentication data is securely stored in Supabase (database service). If you wish to delete your account, please contact us through the contact page.

Riot Games API Data Handling

The match history feature on this site retrieves summoner information (PUUID) and match data through the Riot Games API. This data is used solely for processing your request and is temporarily cached on our server for up to 5 minutes. No data is permanently stored in any database. Retrieved data is never shared with or sold to third parties. Our use of the Riot Games API complies with the Riot Games Developer Terms of Service.

Advertising

This site uses third-party advertising services (Google AdSense). Google AdSense may use cookies to display ads based on user interests. Google uses cookies to serve ads based on information from visits to this and other sites. Users can opt out of personalized advertising through Google's ad settings page (https://adssettings.google.com).

Use of Cookies

This site may use cookies to improve usability and for access analysis. Cookies are small text files stored in your browser and do not contain personally identifiable information. You can refuse to accept cookies through your browser settings, but some features may be limited. Build configuration data is stored in local storage on your device only and is not transmitted externally.

Third-Party Advertising

Third-party ad networks may use technologies such as cookies and web beacons to serve ads based on your interests, using information about your visits to websites (not including name, address, email, or phone number). Please refer to each advertiser's privacy policy for details.

Handling of Personal Information

This site may request personal information such as email addresses when you contact us. Collected personal information is used solely to respond to inquiries and will not be provided or disclosed to third parties, except as required by law. We take all appropriate security measures to manage personal information with the utmost care.

Data Deletion

Users can delete their published builds and bookmarks at any time. If you wish to delete your account entirely, please contact us through the contact page. Upon account deletion, all associated data (published builds, bookmarks, profile information) will be permanently removed.

Changes to This Policy

This site may change this privacy policy as needed. The revised policy becomes effective upon publication on this site.

Last updated: March 2026