Some apps won't work with my data?
I have an iPhone 4s and when IIm out of Wi-Fi range and turn on my data some of the apps I did not have on at first to save data usage, do not connect when I turn them on. For example, when I try to use my Bank of America app, the app is on with my data but it still says "network unavailable, search for Wi-Fi or try again later." This does it with some other apps. This happened to me with my iPhone 5s but I do not remember what I did to fix it. Someone know what's wrong?