If you choose to pay on a yearly basis, you essentially get a discount that works out to two free months per year. Office 365, whether Personal, Home, or University, is a subscription-based service. Let's break down some of the major differences between Office products to help you decide which is best for you.
If you'd rather buy once and stick with a set of apps and don't mind the lack of OneDrive storage and, in some cases, fewer apps, Office 2019 is likely a better choice. With a subscription to Office 365, you will pay more for years of service, but you do get quite a few more features, including OneDrive storage and Skype minutes.
While you'll get the core Office apps you love with either Office 365 or Office 2019, there are quite a few differences between the two options.
