Talking about the mobile apps, iOS and Android are the two platforms that are commonly used for building apps. Though there are millions of apps available in the market today, only a few of them are successful. The first question that comes to our mind before building an app is How much to make an app will take? Though finding the factors that impact the cost of an app is important, we need to ensure that we are not compromising the quality of the app while doing so. In this article, we will be discussing the preferred programming language for developing successful iOS apps.