I see there are already threads on this but they sound like a slightly different problem.
I've reported this issue before and it was fixed for a while - I think you took down some specific ads. On iPhone and iPad, the site is completely unusable for me now and has been since the weekend. I'm immediately taken to the app store for candy crush and betting type gains. No vile porn sites yet, but last time this happened the app store redirects came first, then the porn sites.
I'm on a laptop now and will not be trying to access the site via my phone or iPad until I am reassured it's fixed. Please help!