Same like every house has a solid basement, every software project, has a software architecture it is built on, and each project has its own app structure. The types of architectural patterns may vary, but there are 4 most commonly-used ones - the ones whole IT world continuously criticizes but keeps using at the same time: MVC, MVP, MVVM and Viper (the last one as iOS architecture pattern mostly). The comparison of these patterns and choosing a better fit for each Swift-written project’s case w