There was a time, not too long back when designing an iOS app meant relying on one of the three design patterns, namely, the singleton pattern, the decorator pattern, and the bridge design pattern. But, since these patterns started throwing up issues of interactions among client and server, iOS moved towards the newer and better patterns of MVP, MVVM, MVC, and Viper. So, let’s put the debate between MVC, MVVM, MVP, and VIPER to rest once and for all to know which of these design architecture is the best suited for iOS.

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