The same where a bank doesn't provide the same data and services on their website than on their phone application. And that application in addition to being region-locked requires a non-rooted phone with GApps installed.
I'm sure this exists (and clearly so does the insurance company practice), but I've never run into it — bank websites always have the same or more functionality than the phone app. Except maybe something like mobile deposit.
Would require transparent file and copy buffers I guess. In addition to remote desktop functions.