Simon, thank you for pointing that out. You arereferring to NSLayoutAnchor, right? Well, this API is only available from iOS version 9. Most of the apps I have done over the years are required to support more than 1 version of the iOS. Even the latest are required to support from iOS 7. This makes the NSLayoutAnchor API not really an option. Anyway, you are right, if I were to start a new project that didn’t require backward compatibility I would most certainly use the native API over any library/framework dependency.