Usage share of operating systems

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The usage share of an operating system is the percentage of computers running that operating system (OS). These statistics are estimates as usage data is difficult to obtain and measure. Reliable primary sources are limited and data collection methodology is not formally agreed upon. Devices connecting to the World Wide Web log which operating system they are using, and so are an approximate measure of OS usage among consumer devices. As of December 2025, among all devices Android, which uses the Linux kernel, is the world's most common operating system to connect to the web with 34.9% of the global market, followed by Windows with 29.98%, iOS with 16.81%, macOS with 2.03%, and other operating systems with 9.06% total. Between different classes of devices: For smartphones and other mobile devices, Android has 72% share of traffic, and Apple's iOS has 28%. For desktop computers and laptops, Microsoft Windows has 62.16%, followed by unknown operating systems at 18.75%, Mac OS at 14.58%,...

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