Office 365 E5 is our most advanced, secure, and comprehensive offering.It combines the Microsoft 365 Apps for enterprise desktop apps and storage, the Office 365 E1 services, and additional security and compliance features. Office 365 E3 provides a complete suite of apps, storage, and services.

Some customers buy E1 on its own, while others combine it with other versions of the Office apps. Office 365 E1 offers services only, plus web and mobile versions of the apps.These apps are always up to date, and new functionality can be added as often as monthly. Microsoft 365 Apps for enterprise offers the Office desktop apps plus 1 TB of OneDrive cloud storage.Different suites offer different combinations of these elements. Office 365 E plans include apps like Word and Excel (E3/E5 only), OneDrive cloud storage, and services like Teams, Exchange Online, and SharePoint Online. Learn more about the differences between Microsoft 365 Apps and Office LTSC 2021 in Office Support, or use the comparison chart to help you pick the right Office version for your needs. One-time purchases don’t have an upgrade option, which means if you plan to upgrade to the next major release, you'll have to buy it at full price. Office LTSC 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 a Microsoft 365 Apps for enterprise subscription. With a subscription, you get the latest versions of the apps and automatically receive updates when they happen. Microsoft 365 Apps for enterprise includes exclusive intelligent capabilities like Ideas in Excel and Researcher in Word, real-time collaboration, Teams as the hub for teamwork, and advanced security features. Microsoft 365 Apps for enterprise also comes with services like 1 TB of OneDrive storage and Microsoft chat and phone support. The apps can be installed on multiple devices, including PCs, Macs, iPads, iPhones, Android tablets, and Android phones. Microsoft 365 Apps for enterprise is a subscription that comes with premium apps like Word, Excel, PowerPoint, Outlook, Teams, Publisher, and Access (Publisher and Access are only available on PC).

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