iPhone 4S on iOS 7, some of my apps won't update. When I click the update thing, it just opens the app. Most are games I can do without but one is Audio Note which I rely on a lot. Audio Note says some features won't work unless I install the new iOS which I do not want. Still too buggy for me and some of the bugs others have reported, are things I would not want to deal with.
Also, if I do not update to iOS 8.1, and later a newer iOS is released, that works better, if I have downloaded each new iOS to my computer but not to my phone, would I be able to go ahead and get say iOS 9 later? Or to do that will I have to install iOS 8 first?