[PROBLEM] App. Freezing on iPad & iPhone

[suffolktony]

OK Tim, I've tried switching the Pi's wifi off & just using the ethernet connection, switching the Pi wifi between 5 & 2.5, reset the router, changing the iPad wifi between the two also. I've run out of things to try now. It's very strange, considering my Macbook's connected via wifi also & yet that works just fine.