The new programming language gives the fundamental to foil its importance with the current programming language to calculate the furtherance the new programming language gives to the developers. These types of studies can show the importance, improvements, and purpose of new programming languages. In this article, we analyze the new programming language of Apple that is swift with the existing programming language (Objective-C). We are going to describe the changes, components and freshness to verify the words of Apple said about the Swift language. For the replacement over objective-C, Swift needs to assure that it contains a lot of new features as Apple said. Apple has sure-fire that swift will be faster than the Objective-C, as well as it contains a lot of modern language features that are necessary for today's era. In this thesis, it is justified by creating iOS application totally in swift. Developer finds that swift is faster and more efficient by Objective-C. It's proof that swift has a lot of new features and many advantages over the Objective-C and it is also easy to learn. Swift was launched to offer replacement of Objective-C because this has a syntax which barely evolved from the time of its creation and has a big difference with other programming languages that have appeared in the modern era, because they have based on C++ syntax. For this, Swift is inspired by a new programming language like C++, C#, Go, Java, Python, Ruby, JavaScript. Then this syntax is different than the former language. The Swift' s syntax is more simple because it does not use pointers and includes improvements in its data structures and in its syntax. Swift has a simple syntax which helps developers to have fewer mistakes. Swift is an object-oriented and imperative programming language as Objective-C but swift incorporates the functional programming. Some examples of this are filters, amp. Due to these facts, it is important to learn swift to check if Swift could be a programming language adapted to the new times and if it could facilitate the application development for platforms.