Prism has long been considered the premiere choice of frameworks for developing Xamarin.Forms applications with more than 1.3 million downloads of just the Prism.Forms NuGet package alone! Why has Prism been the gold standard for app development? For starters Prism originated around 2008 from the Microsoft Patterns and Practices team for WPF development. Prism was never about basic MVVM helpers like providing a base implementation of INotifyPropertyChanged and ICommand, with perhaps a ViewModelLocator thrown in for good measure. Sure Prism has all of these things but Prism has always been about giving you the tools you need to actually develop your app which includes an understanding of the platform you're working with to give you the ability to Navigate. This is a key feature that makes Prism an actual MVVM Framework for building Highly Modular, Highly Testable XAML applications rather than just a set of MVVM Helpers like MvvmLight or the new Microsoft.Toolkit.Mvvm.