Swift is a simpler language and may take you less time to learn than Objective-C. The entire lines of code in Objective-C can be replaced by adding a single line of code in Swift and hence it is popular among the iOS open source community. iOS developers should have an introduction to Swift programming which should include knowledge of the syntax, object oriented principals, memory management and functional concept before jumping into the language. It’s important to think about why you are building your app and consider the various important factors like maintainability and ease of learning the language. But Swift is a significant improvement over Objective-C in many respects. Read further to find out the thinks that iOS developers should keep in mind while developing for Swift.