Terms of Service

EloDiff is a free, independent tool (a website and an optional Windows app) that analyzes League of Legends match data from Riot Games' official API and generates coaching suggestions with AI. It is provided by Joaquín Orlandau Rosso, an independent developer in Argentina. There are no user accounts and no payments. By using EloDiff you accept these terms; if you don't agree with them, please don't use it.

You must be at least 13 years old to use EloDiff, or the minimum age required by the law of your country if it is higher. If you are a minor under the law of your country, use it with the permission of a parent or legal guardian.

Before your first analysis you must confirm, with a checkbox, that you are 13 or older and that you accept these terms and the privacy policy.

When using EloDiff, you agree not to:

• send automated or bulk requests, scrape the site or try to get around its rate limits;
• interfere with, overload or attack the service or its servers;
• use EloDiff to harass, stalk or harm other players;
• use the service in any way that breaks the law or Riot Games' Terms of Service.

We may limit or block access that abuses the service.

The Windows app is optional and free, and these same terms apply to it. It only makes read-only requests to the League client on your PC, and what it reads is listed in the Privacy Policy. It does not read or modify the game's memory, shows nothing on top of the game and does not play for you.

All game data comes from Riot Games' official API and belongs to Riot Games. EloDiff only shows game data that Riot makes available through its API, and its use of that data follows Riot's developer policies. EloDiff is not affiliated with Riot Games (see the notice at the end of this page).

Coaching reports are written automatically by an AI model (Claude, by Anthropic) from statistics of the player's matches. Every report says that it was generated by AI. They can be incomplete or wrong.

They are suggestions for practice: you decide what to try and how to play. They are not professional advice and not a guarantee of results or rank.

Statistics and estimates are approximate. EloDiff is provided "as is" and "as available": it may be slow, interrupted, changed or discontinued at any time, for example because of Riot API limits or maintenance.

EloDiff's name, logo, design and code belong to its owner, Joaquín Orlandau Rosso. League of Legends, its champions, images and other game assets belong to Riot Games, Inc.

To the maximum extent permitted by law, EloDiff and its owner are not liable for indirect or consequential damages arising from the use of the service, or from the inability to use it. Nothing in these terms limits rights you have under consumer protection laws that cannot be waived.

How EloDiff handles data, and when it is deleted automatically, is explained in the Privacy Policy. You can delete what is stored in your browser with the "Borrar mis datos de este navegador" (delete my data from this browser) button in the info panel (the "i" button), and you can ask us by email to delete the data stored for your Riot ID: contact@elodiff.app.

We may update these terms. If we do, we will update this page and the date at the top; continuing to use EloDiff after that means you accept the new version.

Questions about these terms: contact@elodiff.app.

EloDiff isn't endorsed by Riot Games and doesn't reflect the views or opinions of Riot Games or anyone officially involved in producing or managing Riot Games properties. Riot Games, and all associated properties are trademarks or registered trademarks of Riot Games, Inc.