According to an interview with Apple Senior VP of Software Engineering Craig Federighi conducted by Cnet at WWDC, the first four Catalyst apps introduced to macOS last year are in for a design refresh.
Apple first demonstrated its technology to help bring iPad apps to the Mac—then called Marzipan—with macOS Mojave. When the OS shipped last fall, it included four new apps built using UIKit, the framework that developers use to build iPhone and iPad apps: News, Home, Voice Memos, and Stocks. They were not well-received by Mac fans.