Usage share of operating systems Usage share of operating systems The usage share of operating systems is the percentage of computing devices that run each operating system at any particular time. All such figures are necessarily estimates because data about operating system share is difficult to obtain; there are few reliable primary sources—and no agreed methodologies for its collection. In the personal computing platform area of smartphones and watches two systems dominate: Google's Android with over 2.7 billion users and Apple's iOS and macOS combined with over 1.3 billion users. In the area of desktop and laptop computers, Microsoft Windows is generally above 75% in
Relative market share Relative market share Relative market share indexes a firm’s or a brand’s market share against that of its leading competitor. Market concentration, a related metric, measures the degree to which a comparatively small number of firms accounts for a large proportion of the market. These metrics are useful in comparing a firm’s or a brand’s relative position across different markets and in evaluating the type and degree of competition in those markets. The purpose of the “relative market share metric” is to access a firm’s or a brand’s success and its position in the market. A firm with a market