If your print shop uses a large number of iPads, the purchase of an MDM (Mobile Device Management) is worth considering, with which you can manage all devices centrally.
There are several companies that offer software solutions of this kind, e.g. https://www.jamf.com/de/ or https://www.hexnode.com/de/mobile-device-management/
The monthly costs are about 1€ per device and month in a clearly arranged area.
The advantage is that with one click you can globally update all devices to the same status. No matter if settings, restrictions, updates, etc...
The central administration of the devices is worthwhile according to experience depending upon firm structure starting from approximately 10 devices. Since both the app and the iOS can be updated automatically, the administrative effort is manageable.