Google already knows better than most how we use the internet. Now it wants to dig a little deeper and monitor your app usage as well. Engadget has learned that the company is readying a new mobile service that compensates users if they allow their mobile behavior to be monitored. We’re told that the project, known internally as “Mobile Meter,” utilizes iOS and Android apps that intelligently monitor app usage and web browsing habits and send the data back to Google. Google refused to comment, as it usually does on what it considers “rumor and speculation.” However, our sources tell us that the Mobile Meter program will be totally voluntary. Participants will be required to give their consent (or opt in) before joining. Google isn’t the first to reward users to gather mobile trends either: Nielsen has been conducting research into mobile trends with an Android app.