Hi Timothy,
Regarding "That personal account does not have 365 subscription", are you using personal OneDrive with a Microsoft account (e.g. user@outlook.com )? If so, because OneDrive and OneDrive for Business are two different products, we recommend raising OneDrive questions in our OneDrive forum. Thanks for your understanding.
For the second question, please refer to this article: http://blogs.office.com/2014/03/17/introducing-onenote-for-mac/
As the article mentioned, OneNote for mac can be used by using a Microsoft account and it is not related to the Office 365 account.
Meanwhile, if you are using Office 365 University plan instead of Office 365 for Education, we have a dedicated support channel for Office 365 University users. You can post questions in our Office 365 Home Personal, and University forum for dedicated help.
Regards,
Jim