When it comes to building mobile applications that can seamlessly run across multiple platforms, cross-platform app development is the way to go. By leveraging this approach, developers can create native-looking apps for Android and iOS using a single codebase, saving time and accelerating the development process.

What Makes Cross-Platform App Development So Popular?

The rapid advancement of cross-platform mobile development technology has led to a surge in popularity over the past decade, as illustrated by Google Trends. With many options available, choosing the right framework for your project can be overwhelming. To help you make an informed decision, we've compiled a list of the top six cross-platform app development frameworks and their key features.

The Six Most Popular Cross-Platform App Development Frameworks

Kotlin Multiplatform

Kotlin Multiplatform (KMP) is an open-source technology developed by JetBrains that enables sharing code across platforms while retaining native programming benefits. With KMP, developers can reuse code as needed, write native code if necessary, and seamlessly integrate shared Kotlin code into any project.

  • Programming language: Kotlin
  • Mobile app examples: Duolingo, McDonald's, Netflix, Forbes, 9GAG, Cash App, Philips
  • Key features:

+ Reuse code across Android, iOS, web, desktop, and server-side while keeping native code if needed

+ Seamless integration into any project

+ Full code-sharing flexibility with Compose Multiplatform for both logic and UI

+ No need to introduce a new language to your codebase if you already use Kotlin for Android

Flutter

Released by Google in 2017, Flutter is a popular framework for building mobile, web, and desktop apps from a single codebase. To build applications with Flutter, developers need to use Google's programming language called Dart.

  • Programming language: Dart
  • Mobile app examples: eBay Motors, Alibaba, Google Pay, ByteDance apps
  • Key features:

+ Hot reload feature allows seeing changes as soon as code is modified without recompiling

+ Supports Google's Material Design for building digital experiences

+ Own rendering engine for drawing widgets instead of relying on web browser technology

React Native

An open-source UI software framework, React Native was developed by Meta Platforms (formerly Facebook) in 2015. It's based on Facebook's JavaScript library React and allows developers to build natively rendered cross-platform mobile apps.

  • Programming language: JavaScript
  • Mobile app examples: Microsoft's Office, Skype, Xbox Game Pass; Meta's Facebook, desktop Messenger, and Oculus
  • Key features:

+ Fast Refresh feature for seeing changes in React components immediately

+ Focus on UI with reactive primitives rendering to native platform UI components

+ Integration with mobile app debugger Flipper for debugging Android, iOS, and React Native apps

When choosing a cross-platform development framework for your project, remember that there's no one-size-fits-all solution. The right framework for you will depend on your specific project goals and requirements. By considering the features and advantages of each framework, you'll be well-equipped to make an informed decision about which path to take in your mobile app development journey.