Currently, the max file size upload to OneNote is 100 MB, but it will definitely NOT sync a file anywhere near that size for me. I was not running other programs that may slow it down, either. This is on a late 2013 macbook pro with 2.3 GHz Intel Core i7 and a 34mbs upload/34 mbs download internet connection (and other programs syncing quickly without problem). I've left OneNote open for 2-3 days continuously without any luck. OneNote won't even load across platforms, nor will it allow fast 'add picture as background' for the entire text, leaving my only option as adding > 500 pictures as background individually if I decided to use OneNote. Notability will allow this because of the fast sync, but won't allow typing. I'm trying to use OneNote/Notability to annotate medical text PDF files.
Notability just doesn't have the other functionality of OneNote, so it's basically only good for notation with a pen on an iPad (typing of any kind is a huge pain). I'm not sure of the technical aspects of what apple will allow in terms of sync speed, but there are other non-apple programs (Notability) that sync incredibly fast. I know I'm not OP, but I wanted to say four things to this:
