Thanks very much, it's exactly what I want! Can you explain me what you did in the tapped() function? Because it's a little bit confusing to understand.

Yes it is correct. Thanks very much!

I putted .overlay(Text("Hello, world!")) before .rotation3DEffect(self.flipped1 ? Angle(degrees: 180): Angle(degrees: 0), axis: (x: CGFloat(0), y: CGFloat(10), z: CGFloat(0))), so this is my syntax now: RoundedRectangle(cornerRadius: 20)                     .frame(width: 140, height: 170)                     .foregroundColor(self.flipped1 ? .yellow : .purple)                     .padding()                     .overlay(Text("Hello, world!"))                      .rotation3DEffect(self.flipped1 ? Angle(degrees: 180): Angle(degrees: 0), axis: (x: CGFloat(0), y: CGFloat(10), z: CGFloat(0)))                     .animation(.default)                      .onTapGesture {                         self.flipped1.toggle()                     }  I want the rectangle to show the text only on one face (only when it is flipped)... Instead now he shows it on all 2 faces

But isn’t TestFlight just for publishing apps?

But for creating a playground instead of an app is it ok?

ok, so can I use the Mac Swift Playgrounds too?

So Swift Playgrounds isn’t for building apps?

Now it's working. Thanks to both of you!

Great idea, but I don’t think that it changes to much, already iPhone or other Apple products are very simple to use (brilliant colors, icons, animations, accessibility features and more). I see many old people transferring to iPhone because of its simplicity… And all the features you said are already possible, so we don’t have to make easier a thing that is already easy, doing so it will become more complex for us and also for the user

Okay thanks!

I created the structure down the "let columns" above the ContentView and I called the NumberView in the Button's action and now the error it's gone. But when I play my code and click the button it doesn't show me the text. Can't understand why...

I have tried, but it gives me this error…

I'm trying to do it in Swift Playgrounds and here's my code: import PlaygroundSupport let columns: [GridItem] = [GridItem(.flexible()),                            GridItem(.flexible()),                            GridItem(.flexible())] struct ContentView: View {     var body: some View {         GeometryReader { geometry in             VStack {                 Spacer(minLength: 290)                 Text("text")                     .font(.largeTitle)                 ZStack {                     LazyVGrid(columns: columns) {                         Group {                             Button {                                                              } label: {                                 ZStack {                                     Circle()                                         .frame(width: 90, height: 90)                                         .foregroundColor(Color(.systemBlue))                                         .opacity(0.5)                                     //.position(x: geometry.size.width/2, y: -100)                                                                          Text("5")                                         .font(.largeTitle)                                         .bold()                                         .foregroundColor(.black)                                 }                                 .frame(width: 90, height: 90)                             }                         }                     }                 }             }                      }                                  } } PlaygroundPage.current.setLiveView(ContentView()) I've created a text and I would like that the text will change on the press of the button. For example: there's a Text() witch now has written on it "text" and when I press the blue button (you can see it in my code), I want "text" to change to number "5"

I've defined the text here, how can I change the value of it? VStack{             Text("text")                          Button {                              } label: {                 ZStack {                     Circle()                         .frame(width: 90, height: 90)                         .foregroundColor(Color(.systemBlue))                         .opacity(0.5)                                          Text("5")                         .font(.largeTitle)                         .bold()                         .foregroundColor(.black)                 }                 .frame(width: 90, height: 90)             }         }

Yes like a highlight... is it possible?