I wish I could simply run 3 year old apps. In many cases I am not allowed, especially the bank ones, which are the ones that I cannot run in the background as the OS kills them.
Are you not able to use your bank's mobile or desktop website in your phone's browser? I don't think I've ever installed a banking app. I also use a credit union though, maybe they're less incentivized to force people onto their apps.
Customer support has requested that I use the mobile app, and that usually allows the transfer.