Smartphone use Windows Phone on its smartphones. Windows Phone became the third-most-popular smartphone OS, before being replaced by Windows 10 Mobile, which declined in share to become "largely irrelevant" at less than 0.5% of the smartphone market. Palm replaced their Palm OS with webOS. BlackBerry Limited, formerly known as Research In Motion, made a new platform based on QNX, BlackBerry 10, with which it was possible to control a device without having to press any physical buttons; this platform was later discontinued. By the mid-2010s, almost all smartphones were touchscreen-only, and Android and iPhone smartphones dominated the market. In 2013, Fairphone
Market share in the following:" "Revenue market share: "Revenue market share differs from unit market share in that it reflects the prices at which goods are sold. In fact, a relatively simple way to calculate relative price is to divide revenue market share by unit market share."" "As with the unit market share, this equation for revenue market share can be rearranged to calculate either sales revenue or total market sales revenue from the other two variables." Market share can be decomposed into three components, namely: penetration share, share of customer, and usage index. These three underlying metrics can then be used