iOS 13 is already in the market. You love it. Thanks to the new and unique framework, SwiftUI!! SwiftUI helps you design and develop UIs declaratively while putting less effort into coding. Link - https://medium.com/@quokkalabs135/difference-between-swiftui-and-uikit-frameworks-6b15cc45ea22

1. Difference
Between SwiftUI
and UIKit
Frameworks

2. iOS 13 is already in the market. You love it. Thanks to the new
and unique framework, SwiftUI!! SwiftUI helps you design and
develop UIs declaratively while putting less effort into coding.

3. UIKit
The UIKit (developed using Objective-C language) is
just for that. It’s a framework enabling you to create
user interfaces (UIs) that manage touch events,
interactions between the user and the system/app,
and inputs.

4. SwiftUI
With SwiftUI, you code unlike the UIKit — commonly
used with storyboards. Whereas UIKit is software-
based. SwiftUI is relatively new in the market. It has
been developed to fulfill and resolve the cross-
platform app development problems/issues.

5. Differences
between UIKit and
SwiftUI?
User interfaces
The differences in the mental models of SwiftUI
& UIKit
Online support and available documentation
Minimum iOS versions
Speed of development
Multi-platform support, and
The Interoperability between SwiftUI and UIKit.
SwiftUI has no Xcode interface builder.

6. Choose UIKit if it’s yes for:
I need to build a good-looking app that
behaves on my controls.
Do you want to lower surprises and rough
edges when developing an iOS app?
It would help if you had particular
features, SDKs, frameworks, etc., that do
not get along with SwiftUI.
Have to build apps for iOS 12, iOS 13, or
lower versions of iOS.