Mobile advertising marketplace AdMob has launched a new mobile analytics service that, according to the company company, is "the most important thing" that has happened within AdMob since it's marketplace launched two years ago.

AdMob claims its Mobile Analytics service is the first comprehensive way for advertisers to measure the effectiveness of all their mobile campaigns across various ad networks. AdMob Mobile Analytics if a free, unlimited service that is open to all mobile marketers, whether or not they use AdMob advertising.

With the suite of analytics tools, mobile site owners can track unique visitors, length of visit, page performance, user geography, operator and device specifics.

You can check out a demo of the service in the video below. If you want more, click here to learn about the AdMob Mobile Analytics private beta program.