Compare them at http://www.wikimatrix.org/compare/Tiki-Wiki-CMS-Groupware+MindTouch

• Both are powerful enterprise wikis.

• Tiki is community open source while Mindtouch is single-vendor commercial open source. Thus, MindTouch has an "open core" version and some other versions ("enterprise", etc.) Ref: Open Core licensing
  • And the FLOSS version was eventually stopped, to focus on SaaS: https://mindtouch.com/resources/mindtouch-core-and-platform-this-is-the-end-beautiful-friend
• All of Tiki is community LGPL.
  • If there are things you prefer in MindTouch that are not in the Free/Open Source version, you can take the money you save and invest it to improve Tiki 😀

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

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

• MindTouch
• DekiWiki (the old name)
• TikiWiki vs DekiWiki
• TikiWiki vs MindTouch