--- a/Simoleon/ContentView.swift	Tue Oct 26 18:18:25 2021 +0200
+++ b/Simoleon/ContentView.swift	Tue Oct 26 18:18:36 2021 +0200
@@ -8,8 +8,43 @@
 import SwiftUI
 
 struct ContentView: View {
+    @State private var tab: Tab = .convert
+        
+    private enum Tab {
+        case convert, favorites, settings
+    }
+    
+    @ViewBuilder var adjustedView: some View {
+        if UIDevice.current.userInterfaceIdiom == .pad {
+            NavigationView {
+                Sidebar()
+                ConversionView()
+            }
+        } else {
+            TabView(selection: $tab) {
+                ConversionView()
+                    .tabItem {
+                        Label("Convert", systemImage: "arrow.counterclockwise.circle")
+                    }
+                    .tag(Tab.convert)
+                
+                FavoritesView()
+                    .tabItem {
+                        Label("Favorites", systemImage: "star")
+                    }
+                    .tag(Tab.favorites)
+
+                AboutView()
+                    .tabItem {
+                        Label("About", systemImage: "info.circle")
+                    }
+                    .tag(Tab.settings)
+            }
+        }
+    }
+    
     var body: some View {
-        Text("Hello world")
+        adjustedView
     }
 }