FAQ from Forum Owner:
      Q: How much does it cost?
      A: As a forum owner you are free to activate  Tapatalk in your forum, and you are free to remove/deactivate it anytime  you want to.
         Q: Which forum system does it currently support?
      A: Currently 
phpBB3 3.0.x, 
vBulletin 3.6.x/3.7.x/3.8.x/4.x, 
Invision Power Board (IPB) 3.x and 
Simple Machine Forum (SMF) 1.1.11+/2.x are supported. You can also look for other forum system plugin developed by third party developers using 
Tapatalk API at our 
Developer Support forums