Android (operating system)

Android
Wordmark and logo used since 2023
DeveloperOpen Handset Alliance (led by Google)
Written inJava, Kotlin (UI), C (core), C++, Rust and others
OS familyUnix-like (modified Linux kernel)
Working stateActive
Source modelOpen source, freeware (most devices include proprietary components, such as Google Mobile Services)
Initial releaseAndroid 1.0 / September 23, 2008 (2008-09-23)
Latest releaseAndroid 16 / June 10, 2025 (2025-06-10)
Repository
Marketing targetSmartphones, tablet computers, smart TVs (Android TV), cars (Android Automotive) and smartwatches (Wear OS)
Available in100+ languages
Update methodOver-the-air
Package managerAPK-based
PlatformsARM64 (previous versions were also compatible with ARMv7, ARMV6, x86, x86-64 and MIPS; these architectures are still unofficially supported via third-party solutions). RISC-V has unofficial experimental support.
Kernel typeMonolithic (Linux kernel)
UserlandBionic libc, mksh shell, Toybox as core utilities
Default
user interface
Graphical (multi-touch)
License
Official websiteandroid.com
Support status
Supported
Articles in the series
Android version history

Android is an operating system based on a modified version of the Linux kernel and other open-source software, designed primarily for touchscreen-based mobile devices such as smartphones and tablets. Android has historically been developed by a consortium of developers known as the Open Handset Alliance, but its most widely used version is primarily developed by Google. First released in 2008, Android is the world's most widely used operating system; the latest version, released on June 10, 2025, is Android 16.

At its core, the operating system is known as the Android Open Source Project (AOSP) and is free and open-source software (FOSS) primarily licensed under the Apache License. However, most devices run the proprietary Android version developed by Google, which ships with additional proprietary closed-source software pre-installed, most notably Google Mobile Services (GMS), which includes core apps such as Google Chrome, the digital distribution platform Google Play, and the associated Google Play Services development platform. Firebase Cloud Messaging is used for push notifications. While AOSP is free, the "Android" name and logo are trademarks of Google, who restrict the use of Android branding on "uncertified" products. The majority of smartphones based on AOSP run Google's ecosystem—which is known simply as Android—some with vendor-customized user interfaces and software suites, for example One UI. Numerous modified distributions exist, which include competing Amazon Fire OS, community-developed LineageOS; the source code has also been used to develop a variety of Android distributions on a range of other electronics, such as Android TV for televisions, Wear OS for wearables, and Meta Horizon OS for VR headsets.

Software packages on Android, which use the APK format, are generally distributed through a proprietary application store; non-Google platforms include vendor-specific Amazon Appstore, Samsung Galaxy Store, Huawei AppGallery, and third-party companies Aptoide, Cafe Bazaar, GetJar or open source F-Droid. Since 2011 Android has been the most used operating system worldwide on smartphones. It has the largest installed base of any operating system in the world with over three billion monthly active users and accounting for 46% of the global operating system market.