Office 365 is a subscription-based suite of productivity software and services that pertain to the office solution that we’ve known since 2011. There was just Office before that and it still remains available as a stand-alone product (thus far), but Microsoft has packaged some very valuable features and services together as an online offering of Office, as well as providing the Office software.
Microsoft 365 is a subscription-based suite of software and services that pertain to the bundling of Office 365 and its related services along with Windows 10. In addition, new security features are integrated, such as Azure Information Protection and Advanced Threat Protection. Another important feature is remote device management; for example, just the company data can be wiped clean from a phone should it become lost or stolen.
Office 365 comes in about 20 or 30 different variations (I’ve lost count), but the two most significant plans for the small business are Business Premium and Enterprise E3.
Microsoft 365 comes in three flavors: Business, Enterprise, and Education.