CMeter is a free Chrome add-on developed by TNS.UA. It falls under the category of Browsers and specifically the subcategory of Add-ons & Tools. CMeter activates the Content Meter library on web-pages, allowing users to send statistical information about advertising campaigns on websites.

Unlike other commonly used meters like AdRiver or Google Analytics, CMeter provides more detailed and high-quality data. In addition to standard data on impressions and clicks, CMeter also allows users to determine the number of contacts that an internet user has with content. It also provides insights into users' interests, such as the other websites they visit. Most importantly, CMeter enables users to obtain social and demographic characteristics of the audience, making it a valuable tool for advertising campaigns.

With CMeter, users can gather comprehensive data about their website's audience, helping them make informed decisions to optimize their advertising strategies. The add-on is easy to install and seamlessly integrates with the Chrome browser, making it a convenient choice for website owners and digital marketers.