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| KaiOS | |
|---|---|
 | |
| Developer | KaiOS Technologies (Hong Kong) Limited (with TCL as largest shareholder)[1] |
| Written in | HTML, CSS, JavaScript, C++ |
| OS family | Linux (Unix-like) Android |
| Working state | Current |
| Source model | Source-available (except for the binary blobs) |
| Initial release | October 2017 |
| Latest release | 4.0 / May 2025 |
| Marketing target | Feature phones |
| Available in | 88 languages[2] |
List of languages Afrikaans, Albanian, Arabic, Armenian, Assamese, Azerbaijani, Basque, Belarusian, Bengali (Bangladesh), Bengali (India), Bodo, Bosnian, Bulgarian, Catalan, Croatian, Czech, Danish, Dogri, Dutch, English (United Kingdom), English (United States), Estonian, Filipino, Finnish, French (Canada), French (France), Galician, Georgian, German, Greek, Gujarati, Hausa, Hebrew, Hindi, Hungarian, Icelandic, Indonesian, Italian, Kannada, Kashmiri, Kazakh, Khmer, Konkani, Lao, Latvian, Lithuanian, Macedonian, Maithili, Malay, Malayalam, Manipuri, Marathi, Nepali, Norwegian, Oriya, Pashto, Persian, Polish, Portuguese (Brazil), Portuguese (Portugal), Punjabi, Romanian (Moldavia), Romanian (Romania), Russian, Sanskrit, Santali, Serbian (Latin and Cyrillic alphabet), Simplified Chinese, Sindhi, Sinhalese, Slovak, Slovenian, Spanish (Latin America),
Spanish (Spain), Swahili, Swedish, Tajik, Tamil, Telugu, Thai, Traditional Chinese (Hong Kong), Traditional Chinese (Taiwan), Turkish, Ukrainian, Urdu, Vietnamese, Xhosa, Zulu | |
| Package manager | KaiStore |
| Supported platforms | ARM |
| Kernel type | Monolithic (Linux) |
| Default user interface | Graphical |
| License | Proprietary, Linux kernel patches under GPLv2, B2G under MPL[3][4][5] |
| Preceded by | Firefox OS, Nokia Asha platform |
| Official website | www |
KaiOS is a mobile Linux distribution for keypad-based mobile phones. It is designed and optimised for affordable and low-power feature phones, while retaining access to Internet services through web apps, based on the Gecko engine.[6] KaiOS was originally forked from the former Firefox OS open-source project,[7] and is developed by KaiOS Technologies (Hong Kong) Limited; a company based in Hong Kong, whose largest shareholder is Chinese electronics conglomerate TCL Corporation.[8][1]
Currently, KaiOS was forked from Android for Gonk, so that device manufacturers and KaiOS themselves don't have to develop separate drivers for every component wanting to interact with the Gecko engine, but it cannot run Android's apps due to the lack of Android Runtime.[9]
- ^ a b "The BRICs broke the monopoly, and India's 'Hongmeng' took off". Technology-Info.net. 2 September 2019. Archived from the original on 10 December 2019.
- ^ "Languages". KaiOS.
- ^ "Can I access the source code?". Support.KaiOStech.com. KaiOS Technologies. 6 August 2018. Archived from the original on 15 April 2019.
- ^ "KaiOStech/gecko-b2g". GitHub.com. GitHub. 29 July 2020.
- ^ "Terms of Service". KaiOStech.com. KaiOS Technologies. 2021. Retrieved 15 April 2022.
- ^ "Explore KaiOS • Features". KaiOS. Retrieved 31 May 2025.
- ^ "KaiOS Source code". KaiOS. Archived from the original on 12 November 2022. Retrieved 12 November 2022.
- ^ Das, DJ (10 October 2019). "DJ Das". Authors group. doi:10.1287/9ea64c20-808c-4b4f-9ae8-f0d23963a8af. S2CID 243202603. Retrieved 2 September 2021.
- ^ "KaiOS 4.0 Launched on the TCL Flip 4 with 5G". Reddit.