Well that sounds like a mess, but you're probably not the only one.
Here is the thing: you can only set up an iPhone with ONE account, that means that only one can be the main account, BUT you can download apps with other accounts by logging in/out from the app store.
As far as I know, IF you "cancel" your accounts you won't be able to update or access whatever purchases you've made, those are linked to the respective account.
My advice would be: keep one as your main account (for icloud drive, sync, contacts info etc) and then download whatever app you need from the other accounts through the app store.
I hope I made my point clear.
Have a nice day.
02-17-2017 07:30 AM