https://wccftech.com/apple-releases-beta-3-of-ios-13-3-macos-catalina-10-15-2-tvos-13-3-to-developers/

Today, Apple has seen fit to release the third developer beta of iOS 13.3, iPadOS 13.3, tvOS 13.3, and macOS Catalina 10.15.2. The latest beta builds arrive a week after the second beta was released to developers. If you're a developer, you can download the latest beta builds from the Apple Developer Center right now. Let's dive in to see some mire details on the beta 3 of iOS 13.3, tvOS 13.3, macOS Catalina 10.15.2.

If you're looking to install the latest is 13.3, iPadOS 13.3 beta 3 on your iPhone or iPad, it can be downloaded through the Apple Developer Center or via over the air mechanism. However, take note that you need to install the appropriate configuration profile from the Developer Center.