LightOS
| LightOS | |
|---|---|
| Developer | Light (The Light Phone, Inc.) |
| OS family | Android (Linux-based)[1] |
| Working state | Current |
| Source model | Proprietary software (based on AOSP) |
| Initial release | September 2019[2] |
| Latest release | v534[3] / October 2, 2025[4] |
| Marketing target | |
| Update method | OTA (over-the-air) |
| Kernel type | Monolithic (Linux kernel, modified) |
| Default user interface | Custom (React Native-based launcher) |
| License | Mixed (Apache 2.0 for Android Open Source Project components, plus proprietary modifications) |
| Official website | thelightphone |
LightOS is a proprietary mobile operating system developed by Light for its minimalist Light Phone series of mobile phones, including the Light Phone II and Light Phone III. It is an Android-based platform (forked from Android 8.1 Oreo) that uses a custom interface built with React Native.[1]
LightOS was developed in collaboration with the design agency Sanctuary Computer Inc., which joined Light in early 2018 to create the phone’s software stack.[1] According to its developers, LightOS is the first operating system to embed a React Native application as the core UI launcher.[1] The system is intentionally streamlined and designed to be used "as little as possible",[2] providing only basic tools and eschewing the expansive app ecosystems of standard smartphones.
Overview
LightOS is the software platform running on Light's minimalist phones, which are often described as "anti-smartphones". It aims to offer only essential phone functions in order to reduce distractions and encourage intentional use of technology.[5]
The Light Phone II and III running LightOS can perform core tasks like calls and SMS texting, along with a handful of additional features referred to as "tools" rather than apps. The operating system does not support an app store or any third-party apps, and it omits services like web browsing, email and social media entirely.[6][7]
Development
LightOS is built on the Android Open Source Project (AOSP) foundation. Specifically, the version running on the Light Phone II was forked from Android 8.1 Oreo, as that was the base OS provided for the phone's Qualcomm MSM8909 chipset (Snapdragon 210).[1] On top of the Android kernel and drivers, they implemented the user interface and native applications using React Native – a JavaScript web framework typically used for cross-platform app development.
References
- ^ a b c d e Francis, Hugh (January 8, 2020). "Building LightOS with React Native". Medium. Sanctuary Computer Inc. Retrieved July 17, 2025.
- ^ a b "The Light Phone 2". Sanctuary Computer. Retrieved July 17, 2025.
- ^ "Software Versions & Change Log (Light Phone)". The Light Phone (support). Archived from the original on July 9, 2025. Retrieved July 17, 2025.
- ^ "Software Versions & Change Log (Light Phone)". The Light Phone (support). Archived from the original on July 9, 2025. Retrieved July 17, 2025.
- ^ Hart, Jordan (March 27, 2025). "I tried out a premium 'dumb' phone that costs more than a new iPhone. Here's how its camera shapes up". Business Insider. Retrieved July 17, 2025.
- ^ Patel, Nilay (2025-04-01). "The Light Phone III and the search for the perfect minimalist smartphone". The Verge. Retrieved 2026-03-02.
- ^ Nelius, Joanna (April 26, 2024). "One year with the Light Phone 2 – This 'dumb phone' didn't completely replace my smartphone, but it did change my life". The Verge. Vox Media. Retrieved July 17, 2025.