ReadTheDocs - Spend your time on writing high quality documentation, not on the tools to make your documentation work.
Android - Android is an open source mobile operating system initially released by Google in 2008 and has since become of the most widely used operating systems on any platform.
HackMD - Fast and flexible, real-time collaborative markdown, inspired by Hackpad.
Symantec Endpoint Protection Mobile - Protect your business from malicious mobile attacks on modern operating systems such as Android and iOS.
Documize - Enterprise-grade wiki and knowledge management platform
LineageOS - Operating system for smartphones and tablet computers, based on the Android