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Developer Lewa Technology
Written in C (core), C++ (some third party libraries), Java (UI)
Working state Current
Source model Closed source with open-source components
Marketing target Firmware replacement for low-cost Android devices
Package manager APK
Kernel type Monolithic (Linux kernel)
Official website

LeWa OS (Chinese: 乐蛙), also known as Music Frogs and жабка, is an operating system for smartphones, based on the Android mobile platform.[1][2] Developed by Chinese company Lewa Technology, it is mainly intended for low-cost phones under 1000 yuan (around US$126).[3] As of April 2013, there are more than 2 million users of the system,[4] and as of July 2012, they are among the most popular third-party Android-based ROMs in China, together with MIUI and DianXin OS (also known as Tapas OS).[5] Lewa is also the first aftermarket Android-based firmware in the world that supports the dual-SIM standby feature.[6]


LeWa's team started developing ROMs for Android devices since August 2009, before the LeWa company was established.[7]

Soon after LeWa's technology was established in Shanghai at April 2011, it had received 20 million Reminbi angel investment from Green Pine Capital Partners (also the Round A investor of, coship and some other companies) by June 2011.[8] The company released the first official release of LeWa OS in October 2011. In June 2012, the first "Open Build" version was released with parts of its source code open-sourced, accompanied by a toolchain for developers to build their own versions of the OS.[9]

During early July 2012, it received 50 million renminbi (~7/9 million USD) funding from Tencent,[5][10] and LeWa started deeply integrating Tencent's mobile manager into their ROM since a month before that and provided a SDK to block spam messages on the system level.[11] Observers believe this investment is part of Tencent's strategy to enter the ROM-flashing market.[12]

By Late July 2012, the company introduced M+ Platform, becoming the first team to develop ROMs optimized for the MediaTeK platform.[13][14]

The Chinese version of Nokia X had been found to ship with LeWa OS 5 by default in early 2014.[15]


The ROM includes its own app store named "LeWa Market",[16] a power-save mode,[17] adjustable switches in notification bar,[18] and other modifications "optimized and localized" for Chinese users. It releases new version via over-the-air updates every Friday.[19][20][21] Unofficial releases are available for certain phones without official support from LeWa.[22] Some believe that it provides a user experience and design that's similar or better than iOS and MIUI, and some also praise the ROM for being simple and battery-saving.[23][24][25] However, some Chinese commentators believe that it consumes more battery than stock Android.[26]

See also[edit]


  1. ^ "LeWa Music Frogs Releases New Android 4.1 Jelly Bean ROM!". GizBeat. 2012-09-03. Retrieved 2013-10-08. 
  2. ^ "LeWa OS - "лягушенок", заточенный под MediaTek девайсы | Электроника из Китая" (in Russian). TechnoChina. Retrieved 2013-10-08. 
  3. ^ "Lewa, An Android Smartphone Custom ROM Developer, Released OS5". 2013-09-30. Retrieved 2013-10-08. 
  4. ^ "乐蛙 OS 5,让千元智能机更好用更好看 - 爱范儿 · Beats of Bits". 2013-09-29. Retrieved 2013-10-08. 
  5. ^ a b "腾讯5000万投资乐蛙科技 抢夺刷机渠道_业界资讯_太平洋电脑网PConline". 2012-07-10. Retrieved 2013-10-08. 
  6. ^ "乐蛙OS发布全球首款双卡双待第三方ROM_科技频道_凤凰网". 2012-06-24. Retrieved 2013-10-08. 
  7. ^ "ifanr 访谈:乐蛙的"千元 Android 智能手机"之路 - 爱范儿 · Beats of Bits". 2011-10-11. Retrieved 2013-10-08. 
  8. ^ "松禾资本2000万投Android团队上海乐蛙 - 国内 - 中国网络游戏产业频道-(UUU9)游久网". 2011-06-29. Retrieved 2013-10-08. 
  9. ^ "CTimes - :樂蛙OS,Android ROM,阿里雲OS,中國千元手機,樂蛙,MTK". 2012-09-18. Retrieved 2013-10-08. 
  10. ^ "Tencent(騰訊)がAndroid ROMメーカーに投資、QQスマートフォンの可能性をほのめかす - THE BRIDGE". 2012-07-30. Retrieved 2013-10-08. 
  11. ^ "腾讯手机管家携乐蛙OS打造手机底层安全保护". 比特网. 2012-06-01. Retrieved 2013-10-08. 
  12. ^ "巨头渠道争夺升级!腾讯战略投资乐蛙-专家观点-深圳移动互联网产学研资联盟". Retrieved 2013-10-08. 
  13. ^ "乐蛙与联发科达成合作 将为MTK平台定制ROM_科技频道_凤凰网". 2012-06-24. Retrieved 2013-10-08. 
  14. ^ "乐蛙专为MTK千元机Android推M+计划|南昌网络公司报道—网络营销-珠峰科技". 2012-07-31. Retrieved 2013-10-08. 
  15. ^ "Nokia X行货界面曝光 搭载乐蛙OS 5 手机资讯 3533手机世界". 
  16. ^ anexonel (2013-01-27). "Goophone I5 running LeWa OS". Retrieved 2013-10-08. 
  17. ^ "LEWA OS – BEST EVER CUSTOM ROM FOR MICROMAX A110". DroidSimplified. 2013-08-08. Retrieved 2013-10-08. 
  18. ^ "Lewa OS - больше, чем просто Android! » China Review - обзоры китайских телефонов, смартфонов и планшетных ПК". China Review. Retrieved 2013-10-08. 
  19. ^ "乐蛙:押宝千元安卓手机的刷机市场_网易科技". Retrieved 2013-10-08. 
  20. ^ 小杰 (2012-02-04). "LeWa 乐蛙OS 官方下载—专为千元Android手机深度定制开发的Android ROM | 爱玩电脑". Retrieved 2013-10-08. 
  21. ^ "乐蛙科技 | 创业谱". Retrieved 2013-10-08. 
  22. ^ "Портируем прошивку LeWa OS на свое Android-устройство | Прошивки | Фан клуб android". 2012-10-25. Retrieved 2013-10-08. 
  23. ^ "Lewa OS5 Coming Soon better than IOS | PinoyscreencastPinoyscreencast". Retrieved 2013-10-08. 
  24. ^ "LewaOS сделает ваш Android удобнее и красивее | Лайфхакер". 2013-09-15. Retrieved 2013-10-08. 
  25. ^ "乐蛙OS怎么样?乐蛙ROM实际使用评测_巴士HTC". 2012-05-22. Retrieved 2013-10-08. 
  26. ^ 2013年04月15日06:10 (2011-09-21). "乐蛙VS原生Android 纽曼K1两版ROM对比-搜狐滚动". Retrieved 2013-10-08. 

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