Top Cross-Platform App Development Frameworks for 2021


Cross-Platform App Development Frameworks

With fast technological advances in today’s increasingly competitive digital world, developers are constantly hunting for toolkits or frameworks that can facilitate their jobs and keep application development time and costs to a minimum. In 2021 an overwhelming number of cross platforms have paved their way in the market.

What is an App Development Framework for cross-platform?

A platform-wide app development framework is a set of tools that enables you to build native or native-like applications with a single codebase for several platforms, including Android, iOS, Windows, and the Web.

This will allow you to reach a significantly larger target audience at a considerably lower cost and time on multiple platforms.

Cross-Platform App Development Frameworks advantages?

These are the main advantages of cross-platform frameworks for app development.

Code reusability may be the greatest advantage of cross-platform application development frameworks. Programmers only must code once, and that compiled code can be reused for different platforms to execute the app. The term “Write Once Run Anywhere” is usually used.

WORA (write once run anywhere) eliminates repetitions, saving operating costs in a switch. You can also add another platform later without too much effort by using a shared code database.

Cross-platform app development frameworks help one to balance quality/costs by using a smaller team with a single skill set and a source code for several platforms. The application development framework is flexible.

This is simple, fewer resources and time directly affects the project cost.

Since digital platforms have a single code database, programmers only have to code and maintain a single source code. This makes it easy and quick to install, maintain and update.

When the code is updated, it is synced immediately on several platforms and devices, which saves time and energy.

Best Cross-Platform App Development Frameworks in 2021

There are several cross-platform application development frameworks, which have their advantages and disadvantages. All comes into your preferred programing language and the frameworks you would like to aim for. However, It can be a challenging task to select the right platform. Some of the best cross-platform frameworks to be used in 2021 are listed below.

React Native is based entirely on JavaScript React, a Facebook library that provides a native interface to the platform. React Native is an excellent choice for simple applications with clear connections between the APIs. But native code is often required in complex apps to link any functionality gaps.

Native react advantages.

  • The focus of React Native on UI is in large part, which makes the interface highly adaptable.
  • A rich range of modules and APIs incorporated saves development time.
  • Instant Refresh allows programmers to view code changes in under seconds.

Native React disadvantages

  • React Native has little continuity when it comes to launching new updates.
  • React Native apps for processing speed and memory use are not efficiently optimized.

The Codename One is a Digital Equipment initiative that began after the company was acquired by HP, one of the leading computer manufacturers in the industry.

It has the virtue of running on the native platform and enabling developers to use Java or Kotlin technology directly.

Codename one advantages.

  • Write once, run everywhere, needs no specific hardware, and can be deployed on any supported platform without modification.
  • Code Name One includes plugins like IDEA, Netbeans, and IntelliJ IDEA.
  • With a 100% Free & Easy Drag & Drop interface, code name one is easy to use.

Codename one disadvantages.

  • codename ones’ graphical user interface doesn’t scale well to big programs, and its visual style is also unattractive.
  • Both event controllers are stored in a single register, making creation very tedious.

As Xamarin provides great compile-time error checking, reducing the number of runtime errors that users encounter. The native-like “GUI” and controls that Xamarin provides make it simple to build a native app.

Xamarin integrates with Visual Studio and allows developers to create Android, iOS, and Windows applications with Visual Studio.

Xamarin advantages

  • “Write Once, Run Everywhere” offers the possibility of exchanging 90% of the code between various platforms.
  • Xamarin’s platform-specific UI elements are a plus point. forms will look the same regardless of which OS you choose.
  • With Xamarin, native libraries and platform APIs are connected.

Xamarin disadvantages

  • Xamarin applications are far bigger than those made for Android and iOS.
  • Rich graphics is not recommended for Xamarin apps A lightweight app can be implemented entirely in the native platform, or framework.

One of the SDKs used for mobile app growth, it has a solid following in the cross-platform crowd. Flutter framework, in addition to the Dart language, is also immature because it’s relatively new.

Flutter advantages

  • It is straightforward, trivial to develop, low maintenance, and all have already been done for you by the compiler.
  • There are complete sets of Material Design widgets and the Cupertino pack for Flutter in the App Store.
  • Developers will provide a short turn-around time for new code to be rendered visible with the Hot Reload function.

Check: flutter app development costFlutter disadvantages

  • Keep in mind that Flutter does not help all platforms. It will not function well on a 32-bit laptop.
  • When making an app that uses both iOS and Android, you do not have the same options available as when it comes to third-party SDKs.

Apache Cordova Server is an open-source web server developed and maintained by a group of designers, developers, and researchers. The open-source Cordova project is a fork of the PhoneGap. While they are made with Cordova, they are not completely Web apps. Cordova wraps HTML, CSS, JavaScript, and the target framework.

Cordova apps make use of standard-compliant API connections, such as records, sensors, network connections, and the like to gain access to various devices.

Cordova’s advantages

  • an open platform that is highly compatible with third-party and developer extensions and APIs Simultaneous input devices help.
  • Programming skills are not enough, but command-line skills are simple to acquire and simple to use.
  • relatively simple to create, development and deployment for multiple platforms.

Cordova’s disadvantages

  • Cross-environment applications are slower than smartphone apps since the former must be recompiled in each OS.
  • Couplers find it challenging to locate plugins according to specific requirements.


If you want reusable technology, budget-friendly, cheap, simple to implement, and quickly deployable code, then go for cross-platform.

Cross-Concept allows the code easier, quicker to learn, translate, manage, and reuse, thus increasing the readability of your code and letting you make use of several platforms simultaneously.

Cross-platform software creation is never a one-size-fits-all solution. what is the most appropriate environment for you depends on your programming abilities, platforms of choice, and project specifications.

If you are planning for cross-platform mobile app development then feel free to contact us today. Also check: hire ios and android developers | flutter vs react native vs xamarin

Originally published at on March 12, 2021.



Aalpha Information Systems India Pvt. Ltd.

Aalpha is specialist India based Software Solutions company providing solutions for Web and Mobile development,