RISC OS is described as 'Risc OS is an open-source OS specifically designed to run on the ARM chipset' and is an app in the OS & Utilities category. There are more than 100 alternatives to RISC OS for a variety of platforms, including Linux, BSD, Self-Hosted solutions, Windows and Mac. The best alternative is Ubuntu, which is both free and Open Source. Other great apps like RISC OS are Manjaro Linux (Free, Open Source), Arch Linux (Free, Open Source), Fedora (Free, Open Source) and Windows 10 (Paid).
Ubuntu is a community developed, Linux-based operating system that is perfect for laptops, desktops and servers. It contains all the applications you need - a web browser, presentation, document and spreadsheet software, instant messaging and much more.
Arch Linux is an independently developed, i686- and x86_64-optimised GNU/Linux distribution targeted at competent Linux users. It uses pacman, its home-grown package manager, to provide updates to the latest software applications with full dependency tracking.
Windows 10 is a personal computer operating system released by Microsoft as part of the Windows NT family of operating systems To encourage its adoption, Microsoft announced that during its first year of availability, Windows 10 would be made available free of charge to users...