TYPO3 is described as 'enterprise-class, open source CMS, used internationally to build and manage websites of all types, from small sites for non-profits to multilingual enterprise solutions for large corporations' and is an app in the Development category. There are more than 100 alternatives to TYPO3 for a variety of platforms, including Online / Web-based, Self-Hosted solutions, Linux, Windows and Mac. The best alternative is WordPress, which is both free and Open Source. Other great apps like TYPO3 are Ghost (Free, Open Source), Drupal (Free, Open Source), Grav (Free, Open Source) and Joomla (Free, Open Source).
glFusion is an extremely powerful system for creating online content. It powers all types of sites from personal blogs to high volume community discussion sites, intranets, and almost everything in between. It is well suited for both public and private sites.