Similar

• Both are full-featured free and open source web applications.
• Both are community-run projects
• Both have large & vibrant communities

Different

• Plone 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.
• Tiki can run on standard, inexpensive hosting while Plone needs more.
• Plone is written in Python, while Tiki is in PHP.
• Plone started in 1999, and Tiki in 2002

CMS Match

http://www.cmsmatch.com/compare/content-management-systems/844+1073

CMS Matrix

Compare them at http://cmsmatrix.org

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.

Related links

http://www.realstorygroup.com/Blog/248-Does-a-sticky-Wiki-make-a-CMS?

Alias

• Plone
• TikiWiki vs Plone
• Tiki vs Zope Not really comparable but Zone & Plone are closely associated