Other office apps

OS-College focuses on LibreOffice and OnlyOffice because the two office suites can be installed on Windows, Mac OS, and most Linux distros, and they are open-source. The Website also covers two popular office suites that can be accessed through just about any Web browser on any operating system.

They are both used by billions worldwide:

Google Drive and its associated applications are available to anyone with a Gmail account. Many businesses also use them on a day-to-day basis.