Are you referring to this clause?
<blockquote>Additional License Limitations.
   4. Use any unauthorized third-party software that intercepts, "mines", or otherwise collects information from or through the Game or the Service, including without limitation any software that reads areas of RAM used by the Game to store information; provided, however, that Blizzard may, at its sole and absolute discretion, allow the use of certain third party user interfaces;</blockquote>

The response is: **Maybe**. It depends of the way the application is working... If your app collects info through the game, you don't have rights to do this, unless you contact Blizzard to ask for a formal agreement.

But, if the application collects data directly from the mouse and keyboard, without interaction with the game, you legally have the right to use it, according to EULA. Anyhow, i don't think Blizzard would caution that kind of work-around...

If you want to avoid problems, **don't do this**.