Literally the entire point of the iParent app is to have everything you get with Parent Portal, but mobile. I actually assumed this was already built-in, but when some users complained that they weren't receiving emails I took a look for myself.
To be clear; "EMAIL HISTORY" exists, but not "COMMUNICATION HISTORY".
EMAIL HISTORY contains only emails published to the portal/app via the "Parent Portal Manager -> Communications -> Create Email" section. A section I would wager is probably very rarely used, at least by most staff in any given school.
COMMUNICATION HISTORY includes everything sent via "Pupil Manager -> Email Wizard".
If Parents are relying on this tool as a primary point of contact/information, but they're not getting one of the main forms of communication we use, there's a good chance that they will miss something important.