millimetrics is described as 'provide analytics for Windows software, desktop and services' and is an app. There are four alternatives to millimetrics for a variety of platforms, including Mac, Windows, Linux, Online / Web-based and SaaS. The best alternative is Revenera Usage Intelligence. It's not free, so if you're looking for a free alternative, you could try DeskMetrics. Other great apps like millimetrics are Roambi and Revenera Compliance Intelligence.