HELP! internal storage/external storage/sd card/phone???

view story

http://androidforums.com – Ok I really can't figure this out and my theory is that the droid maxx has it backwards and uses "internal storage" to mean external storage and "move to phone" as internal storage. Can anyone please explain this to me?? I have ApptoSD and, as an example, one of my apps MUST be kept on internal storage. So when I click on the app under "manage apps" the option to "move to internal" is grayed out; it won't even let me select it. Impluing it's already stored on internal and can't be moved to idk "internal storage which is secretly external storage&qu (General)