GhostBSD

vs

HarmonyOS

FreeBSD is a free and open-source Unix-like operating system descended from the Berkeley Software Distribution. FreeBSD was first released as in 1993, and is today the most popular free and open-source BSD operating system on the market today. In total, FreeBSD accounts for more than 75% of the market. FreeBSD can be installed easily on most machines and is licensed under the permissive BSD License.

MidnightBSD is a free and open-source desktop operating system for x86 and x86-64 based PCs. The OS is originally forked from FreeBSD 6.1, and periodically updated with code and drivers from later FreeBSD releases. The developers behind MidnightBSD has been stringing since 2006 create an easy-to-use operating system that everyone can use, freely. 

A highly modular, flexible and lightweight Linux distribution for computers with x86-64 processors. Arch Linux is a free and openly developed by the Arch community and released under the GNU General Public License.

A mobile operating system designed by Apple, that runs on iPhone, iPad and Apple Watch devices. iOS uses a multi-touch interface in which simple gestures operate the device, such as swiping your finger across the screen to move to the next page or pinching your fingers to zoom. These gesuters and the ease of use and simplicity of the operating system is one of many things that brought success to the platform and Apple as a whole.

Phoenix OS is an operating system specifcally designed to bring Android gaming to the PC. The OS is based on Android 7.1 and is developed and released free and open-source. With Phoenix OS you can play your Android games on a big screen, with mouse and keyboard support thanks to Octopus keymapping engine and Game Assistant, offering a powerful fundamental keymapping.

Android is a free and open source mobile operating system built on-top of the Linux kernel. The OS is used by over 150 million people world-wide, which makes it the most popular mobile operating system on earth. Android is optimized for how you use your phone, helping you manage conversations, organize your day, and connect with the people that matters most to you.