KaiOS is described as 'Brings smartphone-like functionalities to affordable phones: the KaiStore for apps. Video calls over 4G. Mobile payments through NFC. Even dual-SIM support' and is a operating system in the os & utilities category. There are more than 25 alternatives to KaiOS for a variety of platforms, including Linux, Android, Linux Mobile, Self-Hosted and iPhone apps. The best KaiOS alternative is Android, which is both free and Open Source. Other great apps like KaiOS are postmarketOS, Ubuntu Touch, Replicant and Plasma Mobile.
Open source Linux-based platform designed for smartphones, tablets, netbooks, automotive infotainment, and smart TVs, offering scalable compatibility, advanced multimedia, touch support, Application Compatibility Layer for Android apps, 3D UI, and multitasking.
United States
Ubuntu Touch is made and maintained by UBports. It is a free and open source mobile OS for you! Meanwhile we care about your privacy and freedom.
The new operating system from OnePlus, based on Android. OxygenOS is light and essential with subtle, useful features.
China
Xiaomi HyperOS is a proprietary operating system developed by Xiaomi. It's designed to provide an enhanced user experience through its unique features and functionalities. The system integrates seamlessly with Xiaomi's wide range of devices, creating a unified and...
China
Amazon Fire OS is an Android-based mobile operating system produced by Amazon for its Fire Phone and Kindle Fire range of tablets, and Fire TV; the tablet versions of the Kindle e-readers are the Fire range. It is forked from Android.
webOS is a web-centric and usability-focused software platform for smart devices. The operating system has constantly evolved, passing through its journey from Palm to HP, and most recently to LG Electronics.
South Korea
Havoc-OS is an after-market firmware based on Android Open Source Project, inspired by Google Pixel with a refined Material Design UI. We offer a smooth and stable experience for your device with a selected set of amazing features that provide an exceptional user experience.
Astian OS is an operating system that is based on the discontinued Firefox OS, development by Astian Foundation, thus allowing support for mobile devices, TV's, and other devices. Astian OS is completely free and open.
Chile
LuneOS is an open source firmware distribution for smartphones and tablet computers based on the Open webOS mobile operating system.
QtMoko is debian distribution for Linux based SmartPhones, like Openmoko Freerunner and Goldelico's GTA04 phone. Phone and user interface is based on QT Extendeded formerly known as Qtopia..
Czechia
EU
Oniro is an Eclipse Foundation project focused on the development of a distributed open source operating system for consumer devices, regardless of the brand, model, make.
United States
B2G is a community maintained open source operating system for smartphones, tablets, smart TVs and other connected devices. The project was started in 2011 and is based on the Linux kernel and Gecko rendering engine.
