Simon Grimm's tutorial explores building a native superapp using micro frontend architecture combined with Federated Capacitor. A superapp is a native application constructed with web technologies that consolidates multiple micro frontends, enabling the integration of new features over time and facilitating parallel development by multiple teams. The guide demonstrates the creation of a superapp by setting up three projects using Module Federation: a host app, an About page with React, and a List page with Vanilla JS. These micro frontends are exposed and combined into a single web app, which is then transformed into a native app using Capacitor. The process involves configuring Federated Capacitor, which is part of the Ionic Enterprise SDK, allowing the app to be built and run on native devices. The tutorial also highlights the potential for live updates with Ionic AppFlow, enabling individual micro frontends to be updated independently without going through app stores. This approach exemplifies the power and flexibility of using micro frontend architecture for developing scalable native apps.