IOS programming language

7 Leading iOS Programming Language You Absolutely Can’t Miss!

iOS is the second most-used operating system in the world behind Android. All Apple devices are powered by this operating system. There are so many programming languages available in the market for the need of developing iOS apps. It depends on your business and app requirement which programming you want to use for iOS product development. In this article, we will discuss the most popular iOS programming languages that will help you to make one final choice for your next iOS app. Check them out and decide which one will be the best for your project.

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swift for App development  - Calistu : web developer

In 2014, Apple introduced Swift as the successor to Objective-C as the standard programming language to build native iOS apps. In 2018, Swift got huge popularity and became the #1 iOS development language for Apple operating systems. According to the Stack Overflow 2020 Developer Survey, Swift was the 17th most popular programming language globally and was used by 5.9% of developers worldwide.

As a fairly new and modern programming language, Swift is a highly recommended programming language for creating interactive and feature-rich platforms. If you want to create an application relatively quickly that you can easily expand later, Swift will be a great choice.


iOS, macOS, iPadOS, tvOS, watchOS, Linux, z/OS, Cocoa, Cocoa Touch, and the extensive codebase written in Objective-C for Apple products


  • Open-source and dynamic
  • Easy to use and stable
  • Regular update
  • Can be supported by multiple devices
  • Interoperability especially with Objective-C
  • Fast development process with a simple syntax and grammar
  • Automatic Memory Cuntig (AMC)
  • Type-safe and memory-safe
  • Good scalability
  • Easy code maintenance


  • Does not support old iOS versions
  • Limited talent pool
  • Bad interoperability with third-party tools 
  • Still new for developers to trust


iOS Development Language - Calistu:  app development company

Developed by Tom Love and Brad Cox in the early 1980s, Objective-C is a general-purpose language created as an extension of the C programming language with object-oriented capabilities and a dynamic runtime. Objective-C was ranked 20th, only used by 4.1% of developers worldwide in 2020.Before Swift, Objective C was the primary iOS app development language. Message passing among objects is a key feature of Objective-C that became useful for Apple iOS operating systems. Its popularity is declining, so finding developers programming in this language can be challenging. Objective-C is a good choice when you want to create an app available for all, including older versions of iOS that Swift doesn’t support.


iOS and OS X operating systems and their Cocoa, APIs, and Cocoa Touch


  • Offers a long-lasting experience 
  • Provides full support for older versions
  • Dynamic typing improves flexibility in using class
  • Mature and stable
  • Compatible with C and C++ libraries


  • Limited functionality
  • Low-security level
  • Difficult to learn
  • Lack of new updates
  • Low development process
  • Unavailable as open-source
  • Limited talent pool


Anders Hejlsberg created the C# as Microsoft’s answer to the Java language and launched it in 2000.C# is considered the most versatile programming language all over the globe. It was the 7th most popular programming language globally and was used by 31.4% of software developers worldwide in 2020.As a high-level, object-oriented, general-purpose programming language, C# is tightly integrated with the .NET platform, which is both a framework and a runtime environment. The C# developers can work on building native iOS using Xamarin. This iOS development language is the right choice if you have experienced C# developers in your team.


Apps that include Windows client apps, Windows services, Windows applications, Web services and Web API, Backend Services, and Azure cloud apps and services


  • Easy iOS development 
  • Open-source
  • Automatic garbage collector
  • Avoids the memory leak problem 
  • Cost-benefit and better integration 
  • Best programming support
  • Rich library 
  • Huge talent pool
  • Safe and great community
  • Scalable and updatable
  • No need to learn a new programming language


  • Has windows based server for running the application
  • Consists of poor platform GUI
  • Hard to learn for beginners


HTML5 developed by World Wide Web Consortium in 2014, is a markup language that finds use to create and present websites by defining their content’s meaning and structure. HTML, together with CSS, ranked as the 2nd most popular technology in 2020. 

With the help of tools such as Apache Cordova or the Visual Studio for Mac, knowledge of HTML5 also makes it possible to develop iOS apps. HTML 5 joins with CSS and other technologies that can be utilized for building hybrid iOS apps. These applications are not native. HTML5 is a smart choice if you want to quickly develop a simple iOS application that can also be accessed offline.


Web apps that can run on any browser, any device or desktop, or server


  • Cost-effective and multi-platform development 
  • Enables to provide good page ranking 
  • Wide talent pool
  • Best mobile access for business intelligence
  • Large consistency across several browsers


  • Diverse video support for HTML 5
  • Needs modern browsers for accessing it 
  • Media licensing issues
  • Responsiveness design problems
  • Limited functionality
  • Doesn’t allow to build native apps
iOS App Development Language


Python is considered one of the top programming languages of recent times. Guido van Possum created this general-purpose, high-level, and open-source programming language in 1991. It was the 4th most popular programming language globally and used by 44.1% of software developers worldwide in 2020.Python is a dynamic programming language that supports object-oriented, imperative, functional, and procedural development paradigms. It is also very popular amongst machine learning programming. As an iOS app development language, Python can be used to create libraries, functions, and back-end processing tasks.


Builds desktop GUI applications, web applications, and websites.


  • Easy to read and use language 
  • Versatile and faster development 
  • Cross-platform app development.
  • Contains all the libraries within it 
  • Good for prototypes


  • Consumes a lot of memory
  • Produces runtime errors
  • Holds limitations to access the database
  • Has a slow speed as compared to C and C++


First released in 2003, Xcode is an IDE for macOS which contains a set of software development tools developed by Apple. Its latest stable release is version 12.5.1released on June 21, 2021, which is available using the Mac App Store free of charge for macOS Big Sur users. Xcode covers Command Line Tools that enable UNIX-style development using the Terminal app in macOS and can be downloaded and installed without the need for the main IDE. Registered developers can download preview releases and prior versions of the suite through the Apple Developer website.


iPhone, iPad, AppleTV, Apple Watch, and Mac


  • Good code completion 
  • Has easy to use UI creator 
  • Allows to test the app while you are building it
  • Helps learning profiling and heap analysis 
  • Has a wide range of audience who are excited to pay for the applications


  • Makes it difficult to work with different windows 
  • Provides no support for tabbed for the environment
  • Has an outdated Objective C that makes it frustrating to use 
  • Has a complex process for exporting the app on any device


Created by Google in 2017, Flutter is an open-source UI software development kit. Flutter was the 2nd cross-platform mobile framework used by 39% of software developers worldwide in 2019 and 2020. The apps that are developed using this iOS development language are written in Dart language and can use many advanced features. Flutter is worth considering if you want to create not only an iOS app but also plan to create a desktop and web version.


iOS, Mac, Android, Linux, Google Fuchsia, Windows, and also fusing a single codebase for the web


  • Uses the same UI and business logic across all the platforms
  • Time and cost-efficient
  • Easy to develop and maintain new features
  • Similar to that of native app performance 
  • Requires only one codebase for two applications
  • Provides its widgets
  • Full customization and fast rendering
  • Free and open-source
  • Architecture based on the popular reactive programming


  • Relatively big app’s size
  • Limited talent pool
  • A limited number of libraries
  • Small community
  • Lack of standard development guidelines
  • The apps developed by Flutter are not supported by the web browser

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