Top OS

Operating systems are ranked by number of users; the version percentage shown in the card's subtitle is calculated within that OS's own share, not across all site users.

This metric is your main compass for allocating engineering and testing budget. Imagine you want to assess which platform your new frameworks get the most use on; if Android or Windows dominates the chart noticeably, your experience's front line runs on that platform, and any technical flaw there costs you the most audience. Watching this indicator over time also helps you read sudden traffic shifts — a sudden jump in one OS's share usually signals overflow from a targeted marketing campaign, or a fresh audience segment arriving on the platform that wasn't there before.