You can keep as much security as you want, depending on the policies and profiles. We use native where possible, we only use boxer for devices outside of samsung and apple and we only control our data, no personal info is under our control. Will be better when change over to MAM vs MDM.
Well currently we are using MAM on Citrix, and they hate it. So they can use the stock iOS eneil app and we can still prevent copying text into an unapproved app, prevent viewing of contact notes and calendar attachments, email from others that are using the device and wipe out all our data without touching personal data?