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iOS - What Is the Best Language For App Development?

If you are an iOS application developer or just interested in learning about iOS programming languages or the best language for iOS app development, this article will benefit you. Having a clear knowledge of iOS application programming languages in the market right now will not only help you stay on top but will also help you have a deeper understanding of the top iOS development languages, how to create an app for iOS and other topics. But first off, what is iOS framework? Read on to learn more details.

What is iOS Framework?

An iOS app is also known as an iPhone Operating System application. In simpler terms, iOS is the mobile operating system created by Apple to power many of its mobile devices, and it is based on macOS. Apple iOS was created to provide users with an intuitive and user-friendly design. iOS App developers use Apple iOS to develop applications that they can launch through the Apple iOS app store. An iOS framework is simply a bundle comprising a shared library and other resources, such as images, nib files, or header files. There are numerous iOS programming languages developers have the option to opt for. In addition, these iOS programming languages come with different features and capabilities that are designed to suit different types of projects.

What Is iOS App Development?

iOS app development is a process of building mobile apps for Apple devices such as iPads and iPhones. The Swift or Objective-C are examples of iOS programming languages used to create the software, which is then published to the Apple iOS App Store for download by users. In order to build apps for Apple mobile devices, developers use the iOS software development kit (SDK). The SDK includes tools and interfaces for developing, deploying, running, and testing the apps. Below, we delve into key details that can help you gain a deeper understanding of how to create an app for iOS, which involves choosing the best language for app development depending on some factors.

How to choose the best language for app development?

Like any other app development project, there are vital considerations to note before going ahead to begin building an iOS app. These key considerations also go beyond choosing the best app development language. If you want to launch a successful iOS app, remember to note these factors:

Clear Purpose

Establish a clear purpose for the app before you start developing it. It will guide the user experience and future development direction.

Market Research

Always remember that market research is key: Your app must draw users in order to be successful, which calls for a thorough understanding of your target market. 

Development Plan

Prepare a detailed development plan. This involves selecting the most suitable technology stack for your project.


One often overlooked aspect of iOS app development is the need to ensure compatibility across a range of iOS versions. 

Internal capabilities

Most importantly, evaluate internal capabilities. iOS app development can vary in terms of time and cost, depending on its complexity and functionality, and usually requires several specialists. Therefore, it is essential that the development team possesses the necessary technical expertise, or you could consider outsourcing to a skilled IT team.

Top 6 Technologies For iOS App Development

If you are wondering about what language is iOS apps written in, there are numerous types, including Swift, Java, and Objective C. Some other types include C++, HTML5, React Native, etc.


Swift, often referred to as the "best language for app development," is a powerful and user-friendly programming language that has been designed for use across all Apple platforms, including macOS, iPadOS, iOS, and watchOS. According to the PYPL Index ranking for September 2023, Swift ranks 9th on the list of most popular programming languages. 

Swift stands out as an example of the best app development language due to its dedication to offering a more simplified syntax while bringing together cutting-edge features from programming language theory. 

Apple released Swift in 2014 as the replacement for Objective-C, providing developers with a modern and adaptable language that adheres to the Apache License 2.0. 

Pros of Swift

  • Swift is open-source 
  • Easy-to-understand, basic syntax
  • Minimal storage usage 
  • Built-in error-prevention measures
  • Maximizes the capabilities of iOS and iPhone hardware
  • Compatible with Mac, iPad, Apple TV, and Apple Watch
  • Easy scalability
  • Fast and lightweight
  • Unified codebase

Cons of Swift

  • It is a fairly new iOS programming language
  • It could lead to complications with third-party APIs
  • In comparison to older languages, it has a smaller support community.
  • No support for Android development
  • Does not function with iOS versions prior to 7.0.
best language for iOS app development

Objective C, one of the other best language for app development, is Apple's original iOS application programming language. When building software for iOS and OS X, this is also one of the primary programming languages developers use. It is a dynamic runtime object-oriented computer language that is an enhanced version of the C programming language. 

Basically, Objective-C inherits the syntax, primitive types, and flow control statements of C and adds syntax for defining classes and methods. 

Accounting for 2.29 % market share, according to PopularitY of Programming Language Index (PYPL), Objective-C ranks 10th on the global list of the most popular programming languages

Pros of Objective-C

  • Dynamic typing.
  • It supports these programming languages: C++, C, and Objective-C, which enable the easy creation of cross-platform apps
  • Extensive documentation is accessible.
  • A wide range of third-party frameworks and libraries are available.
  • Compatibility with older Apple operating systems.
  • It has ample developer community support, so it has stability and maturity.

Cons of Objective-C

  • It isn't easy to learn.
  • Declining in popularity. 
  • It is not available as open-source.
  • It has a limited talent pool.
  • It has a low level of security.
  • It lacks new updates 
  • It has limited functionality.
best language for iOS app development

Java, another best app development language, is a class-based, object-oriented computer language. Java is a very good option for creating iOS apps. Java code can operate on any platform with no need for recompilation. In addition, the implementation requirements of the language are minimized to the maximum extent possible. It is also one of the most popular languages for creating Android apps. But you can also use its broad flexibility to create cross-platform applications. According to Stack Overflow's Developer Survey 2023,  Java ranks 7th on the list of the most popular programming languages. 

With the aid of an in-house team or outsourced developers, you can use Java to improve your business by creating scalable and secure web applications.

Pros Of Java

  • It is scalable and updateable.
  • It is an easy and accessible programming language.
  • It has ample community support.
  • It has a high-security level.
  • It is open source and offers flexibility. 
  • The language is robust.
  • A wide talent pool
  • Automatic Garbage Collection
  • Suitable for both native and cross-platform development

Cons of Java

  • Type-heavy language
  • Poor performance
  • Requires significant memory space
  • Complex code
best language for iOS app development

Next on our list is C#. C# has also emerged as one of the best language for iOS app development due to its high-level, object-oriented, and component-oriented nature. In 2000, it was launched to surpass another Microsoft language known as C++. Microsoft designed this language for the purpose of developing different applications. 

More often than not, C# is seen as a formidable choice of iOS development language for app developers looking for a new challenge. It is also a largely renowned iOS development language worldwide.

It is worth mentioning that its popularity surged even more after Xamarin was introduced. Xamarin is a framework that enables software developers to use C# to develop cross-platform applications. 

As indicated in the chart above, C# ranks eighth on the list of most used programming languages among developers worldwide as of 2023. 

Pros Of C#

  • It is an easy-to-learn language and also has an efficient syntax.
  • It is open source.
  • It has powerful object-oriented programming capabilities
  • It offers automatic garbage collection.
  • It offers high performance.
  • It supports both iOS and Android applications. 
  • Strong community support.


Cons Of C#

  • It is difficult for beginners to learn.
  • It can be difficult to publish an iOS application written in C#.
  • Changes and updates to apps may be delayed during compilation. 
best language for iOS app development

Flutter is another example of an iOS development language that developers can use for their projects. In 2015, Google created Flutter and eventually launched it in 2017. This language is powered by Dart and it provides a valuable solution for cross-platform development. It is a comprehensive app Software Development Kit (SDK) that provides developers with an easier way to create visually appealing and natively-compiled applications by employing only one codebase. 

Developers have the opportunity to opt for a language that stands out as the best language for iOS app development in the modern digital age. Indeed, Flutter offers developers a seamless experience in creating aesthetically pleasing and highly functional user interfaces for both iOS and Android platforms, enabling them to view changes quickly. 

Pros of Flutter

  • It is a cross-platform development framework.
  • It has a highly customizable UI design.
  • It is open source.
  • It has a shorter testing period.
  • It has a large community.
  • It has a hot reload feature that speeds up development. 
  • High performance.


Cons of Flutter

  • It is still a relatively new platform.
  • It has a limited talent pool.
  • It lacks more advanced features.
  • It lacks standard development guidelines.
React Native

React Native remains the top pick for developers aiming for efficiency in cross-platform development, making it a great example of the best language for iOS app development. It was introduced in 2015 by Facebook. It leverages the power of Javascript, which allows developers to create native-like experiences while sticking to a single codebase, which saves time and effort during the development process.

For prospective iPhone app developers, it has become the preferred language since it is so easy to learn. Another useful advantage of using React Native is its reusability because everything in this programming language is a component. This language allows developers to create appealing applications for the iOS platform.

Pros Of React Native

  • Code Reusability
  • It has fast-growing popularity.
  • It is time-efficient and cost-effective. 
  • It offers a large community of support.
  • Its live reload feature allows developers to view and work with changes in real-time.
  • It is UI-focused.
  • It offers a fast development process. 
  • It offers native-like performance.

Cons Of React Native

  • There is the risk of low quality and performance.
  • Its dependence on Facebook.
  • Upgrading complexities.
  • Issues regarding feature lag.
  • It lacks some components.
  • Issues with third-party development components

The Rise of iOS App Development: Opportunities and Trends

The global landscape of mobile app development is evolving rapidly, and this is driven by the growing demand for mobile solutions as well as our constant need for quick access to everything digital. In today's fast-paced world, people with skills in iOS app development are in high demand. As a result, many companies worldwide, regardless of their size, are actively looking to hire iOS app developers to help them build their mobile applications. The cause of this demand is clear from user behavior, and studies have also revealed that over half of users open mobile apps more than eleven times per day. Research data from MyAppSite sheds light on the massive scale of the iOS user base, with more than 1.3 billion iOS users worldwide. iOS has certainly established itself as a major player in the mobile ecosystem, with a substantial share of the overall mobile operating system market of 29.58 percent. This further shows a growing need for experts in iOS app development.

What Is The Best App Development Language?

Although we have shed light on some of the best language for app development, before getting started, always remember there is no one-size-fits-all answer to the best language for app development. The decision should be based on a thorough examination of your project's specific requirements. Swift will be a great option if you are looking for how to create iPhone apps quickly and in a way that can be easily updated in the future. If you want to make an app that is compatible with all devices—including iOS versions older than those that Swift doesn't support—think about using Obective-C. Finally, although Java is a less popular option for developing iOS apps, if you used Java to develop a mobile app for Android, you should also consider using it for the iOS version.


In conclusion, we have explored various questions, including "What is iOS framework?", key considerations on how to create iPhone apps, the best app development language, as well as the pros and cons of three iOS programming languages. These insights and key considerations will help you navigate iOS app development and successfully launch an app on the Apple iOS app store. If you are still wondering about what language for iOS apps will best suit your next iOS project and you are not certain where to get started, a consultation with YouDigital might just be what you need. YouDigital is a leading software development company that can provide you with top senior remote developers for your software projects.

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