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, Plasma Mobile and Replicant.
The major difference between Google's stock Android and OPPO's ColorOS is the latter's additional features. Such features include: customizable gestures for screen off, screen on, communication, a security centre, lock screen magazines, options for long screen shot...
Qt6/QML Wayland compositor on PostmarketOS. Runs on any device with mainline Linux support or Libhybris. Core features work at 60 FPS on OnePlus 6. Performance target: fluid on decade-old chipsets, exceptional on newer hardware.
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