Comparative analysis of UIKit and SwiftUI frameworks in iOS system

The paper concerns a comparison of SwiftUI and UIKit frameworks, used in iOS application development. SwiftUI was introduced in 2019 as a successor to UIKit as a main tool for creating application views. The purpose of this article is to compare the time performance of these two frameworks. Six testing applications have been implemented for the research, 2 in each framework. The software was complementary. The defined thesis "SwiftUI is more time efficient for applications with data collection and many filled text fields" was proved.