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The Important Role Design Plays in Building a Mac Catalyst App

There’s more to migrating an iPad app to the Mac than simply checking a box in Xcode. Although developers need to resort to AppKit APIs used to build Mac apps for some functionality, thoughtful design that respects the interaction model of the Mac is a significant part of the process too.

Vidit Bhargava is the designer behind the dictionary app LookUp and the cofounder of Squircle Apps. Bhargava, who we interviewed in the most recent issue of MacStories Weekly for Club MacStories, has written an in-depth look at how much of the process of bringing LookUp’s iPad app to the Mac was about design. As he explains:

I’m sharing this design document to highlight some of the design considerations I made for bringing LookUp’s iOS App to macOS. And while I did use fall backs to AppKit in certain situations (Even though I had no prior knowledge to AppKit, the APIs were relatively easy to get to), I still feel that a lot of apps can design a good experience without having to use them.

We’ve covered the iOS and iPadOS version of LookUp before and love it. On the Mac, there are dozens of little touches implemented throughout the app that make LookUp one of the best examples of an excellent Mac Catalyst app. What I find most fascinating is how familiar but also unmistakably Mac-like LookUp’s Mac design is, which is why it was one of a handful of apps that I spotlighted in my macOS Catalina review.

Bhargava’s full post is worth a read because it’s fully-illustrated with examples of the differences between the iPad and Mac designs, early prototypes, and the evolution of the app’s design.