I do not think it will work. Mobile users, especially on apple iphones, do already see a lot of ads from various sources. Since this forum is ad-supported, it would then become necessary to add advertising to said app. Now, it may not be possible to implement correct and relevant domaining ads into the app (due to specific policies of android and apple). Nor is it trivial to block ads in mobile apps for endusers (especially on apple iphones), so a lot of endusers would rather elect not use this (or any other) app at all, if it shows ads, which is inevitable in current business model... Developing a forum app without ads would be great though.