You can use the Zoom mobile app to share your entire screen on an iPhone or iPad (as long as you are running iOS 11 or higher). You can download the free Zoom mobile app in the Apple App Store.
Note: You cannot annotate when sharing your screen via iOS. If you need to annotate or share the entire screen on an older version of iOS, you can do so if you have a computer nearby using the Zoom desktop client for Mac or PC in conjunction with Airplay, or the Zoom desktop client for Mac and wired sharing. Learn more about Airplay and Wired Sharing.
Tap the Share Content button in the meeting control toolbar. The meeting controls will be at the bottom of your screen on an iPhone and the top right of your screen on an iPad.
Tap Screen in the list of options that appears.
If this is your first time sharing your entire screen, follow the first page of on-screen instructions. You can view these instructions with screenshots in the Zoom Help Center.