The Best Programming Language for Cross-Platform Mobile App

Searching for the best programming language for developing a cross-platform mobile app can be quite a hassle. Let’s immediately delve into the subject.

best programming language for cross platform mobile app

Understanding Cross-Platform and Native Mobile App Development

Cross-platform development involves creating applications that run on multiple operating systems, like iOS and Android, using a single codebase.

Flutter, React native, and Xamarin are among the frameworks that enable this.

The primary advantage is you only need to develop the code once and can reuse it across many platforms, saving both time and money. However, it might not give complete access to each platform’s features, and performance may be slower than native programming.

Native mobile app development refers to developing applications specific to an operating system and using its programming languages and tools.

These apps have been customized for each platform, offering an easy user experience and access to all platform-specific features. Native development requires more time and money but offers high-performance apps with excellent design and user experience.

Key Considerations in Choosing a Programming Language

Choosing a programming language that can make your project successful is important. There are several considerations, especially when deciding between cross-platform and native approaches. Let us discuss the key considerations.

Type of Application

Have a clear goal before choosing a programming language for your project. Consider what kind of application you want to build—is it a web or mobile application, embedded firmware, etc.?

Code Reusability

Cross-platform frameworks like React Native, Flutter, or Xamarin help to maximize code reuse across different platforms. Almost 90% of your code can be reused on Android and iOS.

Performance and App Complexity

You must know if your project will be demanding and how much data you will handle. Some languages can be fast and efficient, but they can come at the cost of complexity.

Using a high-level framework with ready-made components might be faster and easier if your application is basic. Lower-level languages with more control might be better for demanding applications with custom features and performance needs.

Maintainability and scalability

Pay attention to the application’s maintainability, so you should always use the most recent language or technology stack version. Think about long-term maintenance.

Languages with strong typing and clear syntax, such as Typescript or Kotlin, can contribute to code maintainability. Note how many users your application can handle and what will happen when your number of users increases. Is your application flexible enough to accept more users without affecting its performance?

Availability of Libraries and Ecosystems

Ensure the libraries and frameworks you want to use for your projects are available. A strong ecosystem can help with your development. Check if the language works well with other tools and technologies you need for your project.

Flutter: Unifying App Development with Dart

Flutter is an open-source framework that simplifies app development across various platforms. It uses the Dart programming language, allowing you to create programs for mobile, web, and desktop platforms simultaneously. 

Flutter distinguishes itself by using widgets and reusable components for the application’s creation. It enables the creation of high-quality, native interfaces for iOS and Android, resulting in faster and more efficient app development. Dart’s efficient just-in-time (JIT) compilation and ahead-of-time (AOT) compilation ensure fast performance and smooth user experiences.

React Native: Harnessing the Power of JavaScript

React Native is an advanced open-source framework that allows developers to build mobile apps for iOS and Android with JavaScript and React. With a single codebase, it offers native-like experiences. Its declarative and component-based approach allows for efficient UI design, and its hot-reloading functionality enhances development. React Native is renowned for its efficiency, affordability, and simplified workflows, making it an excellent choice for developers looking to balance performance with cross-platform compatibility.

Xamarin: Bridging Platforms with C#

Xamarin is an effective framework for developing iOS, Android, and Windows mobile applications using C# and.NET. Xamarin.Forms make it possible for you to develop user interfaces that complement the style of each platform, ensuring a consistent experience. It also provides direct access to device functionalities, which makes building apps quick and simple. One of Xamarin’s benefits is that you can write code once and run it anywhere. This reduces the development process and code duplication and boosts the delivery of high-quality mobile applications.

Kotlin Multiplatform: Leveraging Kotlin for Cross-Platform Excellence

Kotlin Multiplatform is a framework that enables developers to reuse code across Android, iOS, web, desktop, and server-side environments yet retain native programming features. Kotlin minimizes the time spent developing and updating the same code across several platforms while retaining the flexibility and benefits of native programming. Shared Kotlin code compiles into platform binaries, which effortlessly integrate into any project. It also supports component-level reuse, allowing you to develop user interfaces with customized widgets that can be used across your target platforms. You can read more about it from the JetBrains documentation.

Native Development: Building Apps Specifically for Each Platform

Native development does not allow using a single codebase for multiple platforms; you must build applications specifically for each platform. For native development, you have to use platform-specific languages and tools.

These are key aspects when building applications for each platform:

Platform-Specific Languages

Swift and Objective-C are the most used languages for developing iOS apps. Swift is more current and preferred, while Objective-C is still used, particularly for maintaining older projects. Java and Kotlin are the primary languages used in Android development. Kotlin’s popularity has increased due to its simplicity, flexibility, and smooth compatibility with Java.

Integrated Development Environments (IDEs)

Most developers use Xcode as their official integrated programming environment for developing iOS apps. It offers virtually anything you need to create, test, and deploy applications. Android Studio is the IDE used for developing Android applications. It provides features for designing, testing, and debugging your applications. 

User Interface Components

In iOS, the UIKit framework is used for user interface development, while Android uses XML structures and the Android XML-based framework for user interface design.

Application Architecture

iOS uses the Model-View-Controller (MVC) design, through which the model maintains the application’s data, the view displays the user interface, and the controller handles the interaction between them. Android uses either the Model-View-ViewModel (MVVM) or Model-View-Controller (MVC) architecture, with the Model-View-ViewModel increasing popularity due to its separation of concerns and enhanced testability.

Comparison of Cross-Platform Frameworks and Native Approaches

AspectCross-Platform FrameworksNative Approach
Code ReusabilityCodes can be reused across multiple platformsYou have to use separate codebases for each platform
Cost EfficiencyIt is often more cost-effective due to its code reuseIt might be costlier, especially for multiple platforms
Development TimeIt has faster development cyclesIt has a prolonged development time, particularly for numerous platforms.
PerformanceIt has a slightly lower performance than the native.It is optimized for specific platforms, offering higher performance.
Reliability and SecurityThey are generally secure and reliable, but this depends on the tools used and the level of support for security features such as certificate pinning, storage/database encryption, etc.The security risks are higher; the more layers, languages, and technologies your app has, the greater the chance that vulnerabilities will arise.
MaintenanceIt is easier to maintain with a single codebaseIt requires separate maintenance for each platform.

Case Studies: Successful Apps Built with Different Languages and Native Solutions

Instagram is one of the most popular social media platforms, and React Native was used to build its mobile app. Instagram integrated React-Native into their native application infrastructure to help ship features faster and ensure optimal app performance. You can read more about it here: Instagram Integration.

Google Pay is built with Flutter. Flutter offers good performance and has a native-like feel. Google Pay has successfully created a secure and fast payment platform on iOS and Android. You can read its documentation here: Google Pay.

Apple Music is built using Swift. Apple has developed a new framework called MusicKit, which joggers expressive APIs for your apps to access music items in Swift. You can read more about it in Apple’s documentation.

Factors Beyond Language: Tools, Libraries, and Community Support

When developing cross-platform applications, other factors beyond your language play a crucial role in determining the efficiency of your project. This section will focus on tools, libraries, and community support, which also play a big part in building your applications.


Frameworks comprising React Native, Flutter, Xamarin, and Kotlin are the foundation for developing cross-platform applications. These pre-built software frameworks offer a consistent base for development with key functionality, making it easy to create for several platforms. They are readily available components that make development faster and reduce duplication.

Specialized Software Development Kits (SDKs) provide specific functionalities for some specific tasks to enhance the foundation of your projects. For example, they can help integrate social media and analytics platforms into your applications or help integrate mapping features from Google Maps. 


These are also premade components that help speed development by providing you with pre-written code for common tasks. These pre-written codes comprise UI components, networking modules, data storage solutions, and more. Using these libraries, you can avoid repetitive coding and focus on creating unique and customized app features while enhancing the user experience. 

Community Support

Building applications alone can sometimes be challenging; hence, you need community support. The community provides help through different mediums, such as online forums, accessible documentation, tutorials, and events. Being part of a community, specifically the Cross-platform community, will help you overcome development challenges and stay updated on the latest advancements in your preferred language.

Making the Right Choice: Decision-Making Strategies

Project Requirements

Consider the specific requirements of your project. If you need maximum performance and have a budget for native development, it might be the right choice.

Target Audience

If your target audience primarily uses one platform, you might prioritize developing a native app for that platform first. What type of audience are you looking for? Are you aiming for a broader reach or a specific platform for loyal users?

Budget and Time Constraints

Cross-platform development might be a more practical choice if you have budget constraints or need a faster time-to-market. 

Long-Term Vision

Consider the long-term vision for your app. If you plan to expand to other platforms or need to scale rapidly, a cross-platform approach might be beneficial.


If getting your app to market quickly is a top priority, cross-platform development may be a better choice due to the ability to write code once and deploy it on multiple platforms.

Conclusion: Choosing the Best Programming Language for Your Cross-Platform or Native Mobile App

Choosing between cross-platform and native development for your mobile application depends on various factors, and we have discussed a few in this article. Cross-platform frameworks offer faster development, while native development ensures optimal performance and a user interface tailored to each platform.

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