r/KaiOS

5.2K archived posts · Mar 2018 – Sep 2026

KaiOS: the mobile operating system for smart feature phones

r/KaiOS

News, reviews and development support related to KaiOS, the mobile operating system for smart feature phones. Join us on Discord: https://discord.gg/rQ93zEu

Created Mar 5, 2018

8.9KMembers (last snapshot)

5.2KArchived posts

We also have a Discord server!

Rules

Do your own research before posting;
Discussions must be relevant to KaiOS. For discussions on feature phones in general, go to r/dumbphones. If you absolutely have to post something off-topic here, be sure to give it the according post flair;
Respect other members and their opinions. Follow the Reddiquette. Don't ask for ETAs;
No Not Safe For Work (NSFW) content. NSFW content refers to content that may be sensitive or intended for adult only. Posts and comments discussing those are considered off-topic for a technology community and will be removed.

About KaiOS

KaiOS is a web-based operating system designed to run on affordable mobile devices, with a focus on opening the Internet to more people around the world. First released in 2016, the operating system went popular with the global release of Nokia 8110 4G and the launch of JioPhones in India. It is now running on over 200 phone models in over 180 countries, and its app store, KaiStore, now has over 1,600 apps.

KaiOS is built on top of the Boot2Gecko project, which is forked from Mozilla's now-defunct Firefox OS, and runs apps written in HTML, CSS and JavaScript.

Current latest version: KaiOS 3.2, built on Gecko 84.

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