What is the difference between Microsoft Office 2021 Standard and 2021 Pro Plus?

The main difference between Microsoft Office 2021 Standard and Microsoft Office 2021 Professional Plus lies in the included applications. Microsoft Office 2021 includes core applications such as Word, Excel, PowerPoint, and Outlook. Microsoft Office 2021 Professional Plus, on the other hand, includes additional applications such as Access, Publisher, OneNote, and Teams, making it a more comprehensive suite for professional use.