Similar

• Both are full-featured free and open source web applications with which you can realize a very diverse variety of projects.
• Both are written in PHP and use a database such as MySQL
• Both can run on standard, inexpensive hosting.
• Both have large & vibrant communities
• Both have a template layer

Different

• Tiki is more centralized. Tiki is the all-in-one model while Typo3 (like Joomla!) is the small-core-and-add-what-you-need model. Each model has its pros & cons.
• Tiki is more focused on collaboration whilst Typo3 is more focused on web publishing.
  • The Typo3 community uses Mediawiki instead of dogfooding
    • Please see (if) Why Wiki Syntax Is Important to your project.
• Typo3 is GPL, Tiki is LGPL. The main difference between the GPL and the LGPL is that the latter can be linked to (in the case of a library, 'used by') a non-(L)GPLed program, which may be free software or proprietary software.

CMS Matrix

Compare them at http://cmsmatrix.org

CMS Match

http://www.cmsmatch.com/compare/content-management-systems/1462+1073

Active contributors

Number of contributors who made changes to the project source code each month.

Activity

Number of commits made to the project source code each month.

Alias

• Typo3
• TikiWiki vs Typo3