Below are the facts:
(1) Apple will charge you USD 99 to publish apps via iTunes.
(2) Unless you jailbrake, users need to download the apps from iTunes.
(3) If the app developer doesn't want to spend $99, he can develop and submit online to be downloaded via 3rd party website which is only be useable via jailbroken iphones.
(4) There is already an app named Tapatalk which is targeted for vBulletin forum users. This app is free for forum owners but users must pay to download.
(5) Forum owner must download the required components and install it in their server, so that users who download the client app into their iPhone can connect to any vBulletin forum using the server version of the same Tapatalk.
(6) Now the question is whether ClubSnap owners are willing to take the extra effort to install the extra components for the benefit of all members.
Tapatalk :
http://www.tapatalk.com