Android Frameworks for App Development in 2021

Here are our top 3 best frameworks for app development in 2021

React Native

Overview: React Native was introduced by Facebook in 2016 and is known as an open-source, and cross-platform framework. Since its inception, it is widely used to develop apps for iOS, Android, and Web. By using React Native, the developers can develop mobile apps by using React and Javascript, with some native Android app development capabilities. 

Here are some attributes of React Native: 

  • The framework that is the best framework for app development implements native UI components and delivers a very high-quality user interface with a natve look.
  • It speed up the app development process as it possess a rich library
  • It empowers developers of android app development and gives them access to native functionalities, like camera and other cameras.
  • It allows developers to use platform-specific native code for develop apps as per users requirements
  • It empowers developers to make changes to an app without recompiling it
  • A very reliable platform as it is backed by Facebook
  • It is an open-source framework, so available freely for all the developers

What is not there: 

  • The best framework for app development comes with a built-in navigation which is not much good in functioning as compared to Android native framework navigation
  • The platform is not geared to build complex animation or complicated transitions


Overview: It was introduced by Microsoft in 2011 and it has been around for nearly a decade. So it is one of the oldest application development frameworks. It has rich libraries and tools, so it empowers developers to compile applications for Android, iOS, macOS, and others 

Here are some attributes of Xamarin:

  • The apps developed on Xamarin has native-like performance 
  • It has an extensive ecosystem with C#, .Net, and Microsoft Visual Studio. That makes it one of the most complete mobile app frameworks available.
  • It has platform-specific libraries that empower developers to access APIs from Apple, Facebook, Google to make app experience very high
  • Android app development frameworks comes with enhanced user experience, as it has a large template library that lets developers reuse code across different platforms
  • On the lines of React Native, Xamarin is also an open-source and freely available for all the developers around the world

What is not there:

  • As it is a very old framework, its updates are often delayed before reflected in the framework’s tools
  • The apps developed on Xamarin are often larger than native apps. It takes 5 Mb for new releases and can use 20 Mb for rebuilds 
  • Xamarin is not recommend to build apps with some complex graphics and gaming features specifically 
  • Some parts of the UI code may need to be rewritten in Java or Kotlin to customize your Android app. 



Flutter was introduced by Google in 2017 and it was the first major contribution of Google in cross-platform app development. Its first iteration is called Sky and is designed to run on the Android operating system. As it was introduced in 2017, it is the latest cross-platform app development framework in this ecosystem

Have a look at some attributes of Flutter

  • It features an extensive app development toolbox that comprises pre-installed widgets, APIs, CLI tools, and a wide range of other application development tools
  • It empowers developers to develop new widgets and an ability to customize existing ones 
  • It is highly reliable, as it has support of tech giant Google 
  • It allows fast code implementation and allow for fast testing 
  • It is also an open-source platform like Xamarin and React Natve

What is not there:

  • On the same lines, Flutter apps are large like Xamarin. So sometimes it compels developers to negotiate on images, animation and the number of libraries used.
  • Flutter doesn’t allow developers to use many native APIs unlike React Native. It implies developers to use third-party packages to write their own code