iPhone, some apps refuse to be placed in folder(s)
I have finally resolved to organize the many dozens of apps I have on my iPhone (iOS 11.2.2; most recent, as of this writing). I've created half a dozen folders and am placing apps, accordingly. For example, in folder, "Social" I've placed apps, Facebook, Messenger, Tumbler, etc. But, when I attempt to move Instagram into "Social", the folder deflects Instagram. I have the same problem trying to move Excel into my "Productivity" folder (which also contains Pages, Numbers, . What's up? It's not like these are special system apps.