instantOS is described as 'Manjaro based distro that works out of the box but is still aimed at power users. Everything is lightning fast and works out of the box' and is a Linux Distro in the OS & Utilities category. There are more than 100 alternatives to instantOS for a variety of platforms, including Linux, Self-Hosted solutions, BSD, Windows and Mac. The best alternative is Ubuntu, which is both free and Open Source. Other great apps like instantOS are Debian (Free, Open Source), Linux Mint (Free, Open Source), Manjaro Linux (Free, Open Source) and Arch Linux (Free, Open Source).
Trusted End Node Security (TENS), previously called Lightweight Portable Security (LPS), is a Linux-based live CD with a goal of allowing users to work on a computer without the risk of exposing their credentials and private data to malware, key loggers and other Internet-era...
MerOS is a user friendly, good looking, general purpose Nix based GNU/Linux distro. It is ideal for those who want the most out of their computers, a well-designed desktop environment and an uncommon Linux experience.
The CLIP OS project is an open source project maintained by the ANSSI (National Cybersecurity Agency of France) that aims to build a secure, multi-level operating system, based on the Linux kernel and a lot of free and open source software.