Best for businesses that need business email, Office applications and other business services on PC, Mac, or mobile.And it is more than just Word, Excel, PowerPoint, and Outlook. It provides powerful services like business-class email, online storage, and teamwork solutions.

Includes business services—Email, File storage and sharing, Office Online, meetings and IM, etc. Office applications are not included.It empower your teams with the latest collaboration services and get the IT Control and flexibility that you need to run your business.

Includes all the features of E3 plus advanced security, analytics and voice capabilities. Access the most comprehensive O365 offering, featuring advanced security, analytics and voice capabilities .

Best for businesses that need office apps, cloud file-storage and sharing. Business email not included. Proplus includes the desktop, mobile, and web versions of Word, Excel, PowerPoint, Outlook and business intelligence tools to help run and grow your business. Apps are always updated.

Includes the features of both ProPlus and E1 plus security and compliance tools such as legal hold, data loss prevention, and more.Enables to move your business ahead with the latest Office apps , fully installed plus integrated collaboration services coupled with advanced compliance features and full IT Power.