ExectOS is described as 'Aims to be a stable and flexible, general purpose operating system written from scratch. It is designed to be modular, maintainable and compatible with existing software. It implements a brand new XT architecture and features own native application interface' and is a operating system in the system & hardware category. There are more than 50 alternatives to ExectOS for a variety of platforms, including Linux, Windows, BSD, Self-Hosted and Mac apps. The best ExectOS alternative is Linux Mint, which is both free and Open Source. Other great apps like ExectOS are Ubuntu, Debian, Fedora and Arch Linux.