Prior to Xcode 12 Xcode had the following iOS application project templates:
- Single View App
- Master-Detail App
- Page-Based App
- Tabbed App
If you create an iOS application project in Xcode 12, you will notice these project templates are missing. In Xcode 12 Apple consolidated these project templates into one template: App. If you are following a tutorial that tells you to choose one of the older templates that no longer exist, choose the App template.