Compare Office 2019 and Office 365 Pro Plus.
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Feature	Office 2019	Office 365 Pro Plus
Real-time presence
@Mentions in Outlook
Real-time co-authoring
Chat with co-authors within documents
@Mentions in Word, Excel, PowerPoint
Shared with Me
Office 365 Groups
MRU (Most Recently Used)
Simplified Ribbon Menu across apps

Product specifications

Access your Office anywhere

Office links you to your files from virtually anywhere and your personalized settings roam with you. Work fast on most smart devices with the intuitive new touch features. Away from your desk Instantly stream the most up-to-date version of Office to any Internet-connected PC.

Use Office on your mobile phone

Office 365 ProPlus gives you access to Office Mobile for iPhone and Android phones. The new Office is touch-friendly so you can work the way that's familiar to you.

Deploy from the cloud

Deploy with your tools or from the cloud. Deploy Office 365 ProPlus on-premises with your software distribution infrastructure or with assistance from the Office 365 online service.

Side-by-side support

Enjoy smoother upgrades with side-by-side support. Office 365 ProPlus runs side by side with earlier Office versions. It also respects your existing customizations and automatically loads add-ins and Outlook data files to ensure smooth transitions to the latest programs. Gain more control with real-time monitoring of health and performance.