Stupid me. ONCE AGAIN I purchase an App that just doesn't work because it has not been updated by the original developer for latest OS compatibility. I just installed a new App that actually cost me the massive amount of NZD$1.49 (USD 90cents) .... big deal! but it was only after I ran it that I discover it's as dead as a dodo because it has NEVER EVER BEEN UPDATED for the newer OS iterations that have arrived.... It also locks up my iPad Air and is probably only compatible to work on an iPhone 4 that's never every been updated! Somewhere I read I need to pressure the original writer/developer of the App to fix it but we are dealing with a massive Corporate who are very unlikely to even read an email from me let alone actually care even two hoots... I guess I can kiss my money bye bye but it's the principal of the whole thing paying for trash and it's making the entire process of owning an Apple device a great big fat joke... Next time I buy an App l'll be saying; "here goes noth'n lets see what mess this makes"... For the record the App is called: SineBarCalc from a Company called ITAMCO. Oh well my wee rant over... is there a procedure to let Apple know, or don't they give two hoots either?