VG Insights is described as 'offers free tools for market research, competitor benchmarking and industry trends analysis' and is an website in the Gaming Software category. There are three alternatives to VG Insights, not only websites but also apps for . The best alternative is Steam Database, which is both free and Open Source. Other great sites and apps similar to VG Insights are Steam Charts (Free) and Steam Spy (Freemium).
Steam Spy is Steam stats service based on Web API provided by Valve and cool idea of Kyle Orland from Ars Technica. Steam Spy automatically gathers data from Steam user profiles, analyzes it and presents in simple, yet beautiful, manner.