Mobile operating systems

iOS (formerly iPhone OS) is a mobile operating system created and developed by Apple for its iPhone line of smartphones. It was unveiled in January 2007 alongside the first-generation iPhone, and was released in June 2007. Major versions of iOS are released annually; the current stable version, iOS 26, was released to the public on September 15, 2025.

operating system for mobile devices created by Microsoft

Symbian is a discontinued mobile operating system (OS) and computing platform designed for smartphones. It was originally developed as a proprietary software OS for personal digital assistants in 1998 by the Symbian Ltd. consortium. Symbian OS is a descendant of Psion's EPOC, and was mostly used on ARM processors, although an x86 port exists. A modified version of Symbian for x86 was used on the Fujitsu LOOX F-07C where it was dual booted with Windows 7. Symbian was used primarily by Nokia, and in select models of Samsung, Motorola, and Sony Ericsson. It was also prevalent in Japan by brands i

ChromeOS (sometimes styled as chromeOS and formerly styled as Chrome OS) is a proprietary operating system designed and developed by Google. It is derived from the open-source operating system (which itself is derived from Gentoo Linux), and uses the Google Chrome web browser as its principal user interface.

discontinued family of mobile operating systems by Microsoft

operating system that operates a mobile device

mobile operating system developed by Microsoft

MIUI is a deprecated mobile operating system developed and used by Xiaomi for its smartphones and mobile devices from 2010 to early 2024, prior to the launch of its successor Xiaomi HyperOS. MIUI was based on the Android Open Source Project. Xiaomi produced versions for Xiaomi-branded smartphones and its own Poco, MIUI Pad, MIUI Watch, and MIUI TV (PatchWall).

history of the mobile operating system Android by Google

HarmonyOS (HMOS) () is a distributed operating system developed by Huawei for smartphones, tablets, smart TVs, smart watches, personal computers and other smart devices. It has a microkernel design with a single framework: the operating system selects suitable kernels from the abstraction layer in the case of devices that use diverse resources. The latest stable version is HarmonyOS 6; it was released on 25 November 2025.

iPadOS is a mobile operating system developed by Apple for its iPad line of tablet computers. It was given a name distinct from iOS, the operating system used by Apple's iPhones, to reflect the diverging features of the two product lines, such as multitasking. It was introduced as iPadOS 13, reflecting its status as the successor to iOS 12 for the iPad, and first released to the public on September 24, 2019. Major versions of iPadOS are released annually; the current stable version, , was released to the public on .

MeeGo is a discontinued Linux distribution hosted by the Linux Foundation, using source code from the operating systems Moblin (produced by Intel) and Maemo (produced by Nokia). MeeGo was primarily targeted at mobile devices and information appliances in the consumer electronics market. It was designed to act as an operating system for hardware platforms such as netbooks, entry-level desktops, nettops, tablet computers, mobile computing and communications devices, in-vehicle infotainment devices, SmartTV / ConnectedTV, IPTV-boxes, smart phones, and other embedded systems.

mobile operating system

discontinued mobile operating system developed by Microsoft

eighth major release of the iOS mobile operating system designed by Apple Inc.

mobile operating system

Maemo is a Linux-based software platform originally developed by Nokia, now developed by the community, for smartphones and Internet tablets. The platform comprises both the Maemo operating system and SDK. Maemo played a key role in Nokia's strategy as an attempt to compete with Apple and Android; the only retail devices that shipped with Maemo were the Nokia Internet tablet line released in 2005 and the Nokia N900 smartphone in 2009.

seventh major version of iOS

tenth major release of iOS, the mobile operating system by Apple Inc.

Tizen () is a Linux-based operating system primarily developed by Samsung Electronics and supported by the Linux Foundation.

operating system

thirteenth major release of iOS, the mobile operating system by Apple Inc.

mobile interface for Ubuntu, developed by UBports

ninth major release of iOS, the mobile operating system by Apple Inc.

webOS, also known as LG webOS, is a Linux kernel-based multitasking operating system for smart devices, such as smart TVs, that has also been used as a mobile operating system. Initially developed by Palm, Inc. (which was acquired by Hewlett-Packard), HP made the platform open source, at which point it became Open webOS.

Apple mobile operating system

QNX ( or ) is a commercial Unix-like real-time operating system, aimed primarily at the embedded systems market.

EMUI (formerly known as Emotion UI) is an interface based on Android developed by Chinese technology company Huawei, used on the company's smartphones primarily globally.

sixth major version of iOS

18th major release of iOS, a mobile operating system developed by Apple Inc.

sixteenth major release of iOS, a mobile operating system developed by Apple Inc.

eleventh major release of iOS, the mobile operating system by Apple Inc.

fifteenth version of iOS, Apple's mobile operating system for iPhone and iPod

iOS 26 is the nineteenth major release of Apple's iOS operating system for the iPhone. It was announced at the 2025 Worldwide Developers Conference (WWDC) on June 9, 2025, and released on September 15, 2025. The successor to iOS 18, its version number was brought forward to 26 as Apple adopted a year-based convention for consistency across its operating systems.

seventeenth major release of iOS, a mobile operating system developed by Apple Inc.

twelfth major release of the iOS mobile operating system

fifth major version of iOS

fourth major version of iOS

mobile phone Linux distribution

first major version of the mobile operating system by Apple

third version of iPhone OS by Apple Inc.

third generation of Microsoft's Windows Phone mobile operating system

Android-based mobile operating system produced by Amazon

mobile phone operating system developed by Microsoft

GrapheneOS is a free and open-source, privacy- and security-focused, Android-based operating system for Google Pixel and future Motorola devices. GrapheneOS is built on the Android Open Source Project. It focuses on researching and improving the privacy and security of Android. GrapheneOS is developed by the GrapheneOS Foundation, a Canadian nonprofit corporation.

second major release of iOS by Apple Inc.

TouchWiz is a discontinued user interface developed by Samsung Electronics with partners, featuring a full touch user interface. It is sometimes incorrectly referred to as an operating system. TouchWiz was used internally by Samsung for smartphones, feature phones, and tablet computers, and was not available for licensing by external parties. The Android version of TouchWiz also comes with the Samsung-made app store Galaxy Apps. It was replaced by Samsung Experience in 2017 with the release of Android 7.0 "Nougat".

discontinued proprietary mobile operating system by BlackBerry

software overlay developed by Samsung Electronics

OxygenOS () is an Android-based operating system (OS) developed by Chinese smartphone manufacturer OnePlus exclusively for their smartphones. OxygenOS was developed for their overseas market. There used to also be another version of the OS designed specifically for the Chinese market called HydrogenOS ().

AliOS (formerly YunOS and Aliyun OS) is a Linux distribution developed by Alibaba Cloud, a subsidiary of Mainland Chinese company Alibaba Group. It is designed for smart cars and Internet of Things (IoT) devices, and it had been used as a mobile operating system.

mobile personalization layer based on Android published by Xiaomi

free software version of Android

operating system

free and open source OS distribution based on LineageOS

EncroChat was a Europe-based communications network and service provider that offered modified smartphones allowing encrypted communication among subscribers. It was used primarily by organised crime members to plan criminal activities.

fourth major release of iPadOS, the tablet operating system developed by Apple Inc.

mobile operating system of the iPad

2021 iPad operating system

software suite