Here’s how to do it via the Apple Developer app:Download the Apple Developer App from the App Store. Make sure the Beta Updates selection is set to iOS 27 Developer Beta. iOS 27: How to install the public betaThe first iOS 27 public beta is not available yet but is expected to arrive in July. In the Beta Updates section, select the iOS 27 Public Beta. If you want to uninstall the iOS 27 beta read: How to remove an iOS beta from your iPhone.