The Swift is a new coding language introduced by Apple in December 2015, relatively. This language was developed and designed intended to make apps more stable and simplify the coding approach. its well-designed documentation couple with clear syntax enable developers to master Swift fast and effortlessly. Swift is highly developer friendly language, featured to aim at comfortable development for all the platforms consisting of watchOS, iOS, and tvOS enhancing user experience on dint of increased stability. Even for advanced app development, the Swift platform is easy to use. As per industry scholars iOS platform will continue its expansion and become more and more wanted in the market. Security Users prefer flexible devices to perform different tasks from drawing up a list of products, to paperwork and financial operations. Further, adding to this list as per the popularity and growth of the m-commerce and various in-app purchases using online/debit/credit card information, the security and privacy is expected to be the future challenge. iOS imbibes inbuilt security, hence related apps are esteemed with their advanced secure infrastructure. A high degree of iOS app security is its potential. The inception of App Transport Security (ATS) in 2016 that became mandatory for all developers from January 1st, 2017 is determined to step protect the app development inherently. Though, growing technology had advanced the iOS phone users irrespective of the cost of application purchase. Several features were introduced every year in iOS devices towards this direction. Hence, there are more iOS users as compared to other devices in the market. Security and performance of iOS devices haven’t compromised yet.