What are the main architectural styles and paradigms you are familiar with?

In iOS development, the following architectural styles and paradigms are often used:

• MVC (Model-View-Controller) — a classic style where the model is responsible for data, the view for UI, and the controller links them.
• MVVM (Model-View-ViewModel) — separates presentation logic into the ViewModel, which simplifies testing and binding to UI through bindings.
• VIPER — a more modular architecture that divides responsibilities into View, Interactor, Presenter, Entity, and Router.
• Reactive Programming — using reactive libraries (e.g., RxSwift) to handle asynchronous events and data streams.

The choice depends on the complexity of the project and team preferences.