Targets

• A project can have multiple targets.
• It must always have at least 1 target, which will be your iOS app, or watchOS app etc
• If you are going to have unit tests, this must be a separate target.
  • It's required by Apple.
  • But if it wasn't required by Apple, you could theoretically stuff it into your iOS app target.
    • This would be great coding though, because that means you are forcing the consumer of your app to include non-essential app code. So it would bloat the size of your app

Build config

• Applies to the entire project
• Customises what you do. So you could have a config for "Marketing team" which has the app name "Marketing yo yo".
• Typically you'll have a config for "production", "development" and maybe "QA" and a few others