According to reports, Apple will launch a new iOS app tracking tool for developers, enabling them to track who is using their software while protecting the users’ privacy.

The Wall Street Journal reports that ‘people briefed on Apple’s plans’ claim that Apple will release this new tool in order to satisfy developers’ hunger for user data, while putting users’ minds at rest about how their data is being used.

At present, Unique Device Identifier (UDID) is commonly used by developers to serve adverts and collect data such as location and preferences, but some privacy experts believe that the anonymous string of numbers could be used to identify individual users.

Apple’s new technology will apparently stop developers from being able to identify individuals, but the details of how Apple will go about this are not yet known. WSJ reports that one source believes that the new anonymous identifier will rely on a number sequence that isn’t linked to an individual device.

WSJ suggests that Apple may unveil some details of its new tracking tool at this week’s Worldwide Developers Conference, which is also set to be the launch event for iOS 6, possible new Mac hardware and more.

To find out the news as it happens at tonight’s WWDC keynote, follow our live feed from 6pm here.