Yun OS

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YunOS logo.png
Developer Alibaba
OS family Android (Operating System)
Working state Current
Initial release July 28, 2011 (2011-07-28)
Latest release 5.0 / December 10, 2015
Marketing target Smartphones
Official website (Chinese)

YunOS (simplified Chinese: 云OS; traditional Chinese: 雲OS; literally: "Cloud OS"), also called Aliyun OS (simplified Chinese: 阿里云; traditional Chinese: 阿里雲; pinyin: ālǐyún) is a Linux distribution designed for smartphones based on the Android Open Source Project. It is developed by AliCloud, a subsidiary of Chinese company Alibaba Group. Yun OS was released in China on July 28, 2011. The first device to run it was the K-Touch W700.

It took three years for AliCloud, involving 1,600 engineers, to develop Yun OS from the code-base of the Android Open Source Project. The company is challenging the dominant Android in China and is also looking to expand into Western markets.[1]

As of May 2012, 1 million Aliyun-powered smartphones have been sold.[2]

According to TENAA approval for mysterious Meizu phone, it will be YunOS 3.1.6.[3] [4]

YunOS 5 ATOM was released on December 10, 2015.[5]


Yun OS revolves around the idea of bringing cloud functionality to mobile devices. According to the company, Yun OS will feature cloud-based e-mail, Web search, weather updates, and GPS navigation tools. In addition, the Aliyun services will synchronize and store call data, text messages, and photos in the cloud for access across other devices, including personal computers. Alibaba says it will offer customers 100 GB of storage at launch. Yun OS would allow users to access applications from the Web, rather than download apps to their devices.[6]

Relations with Android[edit]

According to Google, Aliyun is a forked but incompatible version of its open-source Android operating system. The company therefore attempted to prevent Acer Inc. from shipping an Yun OS-powered phone, arguing that Acer, a member of the Open Handset Alliance, had agreed not to produce phones running incompatible Android versions.[7][8] Andy Rubin, who at the time was in charge of the Android division at Google, stated that while Yun OS is not part of the Android ecosystem, it uses runtimes, framework and various tools from Android.[9]

Alibaba disputes the claim that Yun OS is a version of Android by stating the following:[9][10]

Yun OS incorporates its own virtual machine, which is different from Android's Dalvik virtual machine. Yun OS' runtime environment, which is the core of the OS, consists of both its own Java virtual machine, which is different from Android’s Dalvik virtual machine, and its own cloud app engine, which supports HTML5 web applications. Yun OS uses some of the Android application framework and tools (open source) merely as a patch to allow Yun OS users to enjoy third-party apps in addition to the cloud-based Aliyun apps in our ecosystem."

However, the Aliyun app store prominently features pirated Android applications, including many from Google.[9][11]

After Google introduced Android Runtime, some users have reported that ART can be enabled in new Yun OS builds.[12]

Security Concern[edit]

From November 15, 2015, an increasing number of Chinese users found their TV applications were entirely removed from Tmall boxes, which has Yun OS embedded. The applications were removed because the Chinese State Administration of Radio had 81 TV applications on a policy violation list,.[13][14] The remote application removal was executed by Tmall (an Alibaba Group company) by a silent Yun OS upgrade Not sure or built-in backdoor service on reboot (it is ambiguous as to which). There was no notification, nor any option to cancel the application removal. This behavior introduced great security concerns about Yun OS products which include mobile phones, wearable devices, TV boxes, in-car entertainment systems, among others.[15]


  1. ^ Osawa, Juro (2012-09-09). "Chinese Software to Challenge Android -". Retrieved 2012-11-17. 
  2. ^ "Alibaba Cloud Computing and Haier GroupLaunch Aliyun OS-Powered Smartphone : Global Growth Investors". General Atlantic. Retrieved 2012-11-17. 
  3. ^ Karshim Kanwar (2015-10-13). "Mysterious Meizu M3 Note Passes through TENAA". Retrieved 2015-10-13. 
  4. ^ "Meizu M57A TENAA Approval". 
  5. ^ "阿里YunOS 5发布:稳居国内手机操作系统前三-CSDN.NET". Retrieved 2015-12-15. 
  6. ^ Reisinger, Don (2011-07-28). "Alibaba OS-powered handset launching this month | The Digital Home". CNET News. Retrieved 2011-09-07. 
  7. ^ Andy Rubin. "We were surprised to read Alibaba Group's chief strategy…". Google+. Retrieved 2012-11-17. 
  8. ^ Brodkin, Jon. "Google blocked Acer’s rival phone to prevent Android "fragmentation"". Ars Technica. Retrieved 2012-11-17. 
  9. ^ a b c Jon Brodkin (2012-09-17). "Pirated Android apps featured prominently on Aliyun app store". Retrieved 2014-03-17. 
  10. ^ Moyer, Edward (2012-09-15). "Alibaba: Google just plain wrong about our OS". CNET News. Retrieved 2012-11-17. 
  11. ^ "Aliyun App Store Confirmed To Be Distributing Pirated Android Apps, Many From Another Pirate Site". Retrieved 2014-03-18. 
  12. ^ "yunOS打开高级开发人员选项和开启art的方法_红米手机1S_MIUI论坛". Retrieved 2015-12-15. 
  13. ^ "电视盒子81款违规第三方应用被禁 利好版权提供方--传媒--人民网". Retrieved 2015-12-15. 
  14. ^ "广电紧盯电视盒子 81款违规应用被禁-新华网". Retrieved 2015-12-15. 
  15. ^ "Aliyun OS claimed to remove users apps from its Tmall TV box". Retrieved 2015-11-18.