I Have a No Ad Policy On My Forum. Can I Still Use Tapatalk?

We fully believe that when it comes to your forum, only you, the forum owner should decide if you want to display ads to earn revenue from Tapatalk or not. If you do not want to display any advertising, with one click in Tapatalk’s Forum Owner Dashboard you can choose to turn them off completely across your entire forum.

See this the Knowledge Base entry in monetization/advertising on how to turn ads on/off.