Throughout the history of mobile operating systems, Android has not always been in the lead. Between 2009 and 2012, it was in a fierce competition with Apple's iOS, which held a significant market share due to the popularity of the iPhone. Other operating systems like BlackBerry OS and Windows Mobile also had their moments of prominence, but never quite reached the same levels of market share during the 2009-2025 period. By 2013, Android had overtaken iOS in global market share, a position it has maintained ever since. The ability to cater to a wide range of devices, from budget to premium, has been a key factor in Android's sustained dominance in the mobile OS market.