What is the difference between OWA and outlook app?

Outlook on the Web (OWA)

Accessibility:Accessible from any device with an internet connection and a web browser.
Ideal for quick access when you’re away from your primary computer.
Features:Basic email, calendar, and contact management.
Limited offline access; you need an internet connection for most functionalities.
Some advanced features like certain rules, views, and automation are not available.
User Experience:Consistent interface across different devices.
No need to install software; just log in through a browser.

Outlook Desktop App

Accessibility:Installed on your computer, providing full functionality even without an internet connection.
Best for heavy email and calendar users who need advanced features.
Features:Comprehensive email, calendar, task, and contact management.
Advanced features like custom rules, rich formatting, and extensive integration with other Microsoft Office apps.
Better support for tasks, views, and automation.
User Experience:Richer and more customizable interface.
Faster performance and more responsive, especially with large mailboxes.

When to Use Each

OWA: Use it when you need quick access to your emails from any device, especially when you’re on the go or using a shared computer.

Outlook Desktop App: Use it when you need robust email management, advanced features, and offline access, typically on your primary work computer.