Swift- The future of iOS app development. Since its evolution it has impacted the mobile app development industry drastically with modifications in the developers’ workflow. 77.6% developer around the globe have preferred Swift over Objective C for iOS app development. This inforgraph includes a chart showing the key differences between Swift and Objective C like: 12 Key points which make Swift more effective than Objective C: Paradigm- Objective C is class based object oriented but Swift is object oriented and functional. Platform- Objective C is a basic editor whereas Swift is an interactive WYS/WYG editor. Supported OS- Objective C is a cross- platform but Swift supports only iOS, OSx. Execution time- Objective C needs more time as complete code is built every time whenever a change is made to the code but Swift takes less time as unchanged files aren’t recompiled. Code Lengths - Objective C requires extensive coding whereas Swift requires comparatively smaller coding. Code maintenance – In Objective C codes are difficult to maintain but in Swift codes are easy to maintain as it resembles the English language. And many more points like Enuma, Readability, Type definition, Year of Advent etc are stated in the chart which prove that Swift is way more effective than Objective C and is also a more preferred language than Objective C.