Office 2021 is a one-time purchase that comes with classic apps like Word, Excel, and PowerPoint for PC or Mac, and does not include any of the services that come with an Office 365 subscription. With a subscription, you get the latest versions of the apps and automatically receive updates when they happen.

The apps can be installed on multiple devices, including PCs, Macs, iPads, iPhones, Android tablets, and Android phones. Office 365 is a subscription that comes with premium apps like Word, Excel, PowerPoint, OneNote, Outlook, Publisher, and Access (Publisher and Access available on PC only).

If you’re still confused about the differences between Office 2021 vs Office 365:

We suggest using the Office deployment tool to have the latest available version. You can download an ISO on your volume licensing download center or use the Office Deployment Tool. Beginning in Office 2019, Office client applications will no longer be available in MSI format. This blog post will describe how to Deploy Office 2021 using SCCM (using Click-to-run version).

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