When it comes to developing Mac iOS apps, the primary programming language of choice has traditionally been Swift, favored for its seamless integration with Apple's ecosystem. However, the landscape of app development is ever-evolving, leading iPhone app developers to explore alternative languages like Kotlin.

Kotlin, known for its conciseness and compatibility with Java, has gained traction in the Android app development realm. Yet, its potential for Mac iOS app development remains a subject of exploration. While Kotlin is not natively supported for iOS development, certain frameworks and tools have emerged to bridge this gap. Tools like Kotlin Native and Kotlin Multiplatform Mobile (KMM) have emerged as potential solutions to develop cross-platform apps, including those for iOS.

Incorporating the VIPER vs MVVM architectural discourse into the conversation adds an interesting layer. The choice between these patterns remains relevant when considering Kotlin for Mac iOS app development. VIPER's modular structure or MVVM's separation of UI and logic could be implemented within Kotlin-based projects, showcasing the adaptability of architectural choices across programming languages.

However, it's important to note that utilizing Kotlin for Mac iOS app development might present challenges, such as compatibility, tooling, and community support. Swift's native integration with Apple's frameworks and tools provides a more streamlined experience, making it the default choice for many developers.

In conclusion, while Kotlin's potential for Mac iOS app development is intriguing, the current landscape leans heavily towards Swift due to its deep integration within the iOS ecosystem. The Viper vs MVVM debate further underscores the dynamic nature of architectural choices, which can transcend programming languages. As technology continues to evolve, the feasibility of using Kotlin for Mac iOS app development might evolve as well, presenting opportunities for innovative and cross-platform solutions.

You can also explore Can iOS app development only be built on macOS?, to know more about it.