Hello Conor,
Are you using AutoCAD 360 on your iPAD? I ask because you mention editing the files. You also mention the A360 Desktop Sync functionality, and so I'm going to move this thread to the A360 Drive forum.
For the AutoCAD 360 Question on your iPAD check with the AutoCAD 360 team using this eMAIL alias.
feedback@autocad360.com
There is no A360 Drive sync client for the iPAD so it may be that you need to save the files to a folder that is already syncing between your Deskop and the A360 Drive site. Otherwise there is no way for the files to sync. Be sure to check with the AutoCAD 360 Team to see if this is possible as well.
Thanks for posting your question and let us know how this goes.