What is Flutter? - Pros and Cons of Flutter Development

What is Flutter? - Pros and Cons of Flutter Development

Flutter is an open-source UI software development kit (SDK) created by Google to build natively compiled applications for mobile, web, and desktop from a single codebase. Flutter is particularly popular for building mobile apps for Android and iOS platforms. It allows developers to create high-quality, responsive, and visually appealing user interfaces with ease.

Flutter uses the Dart programming language, which is also developed by Google. Dart is designed for fast, efficient app development and is optimized for performance on mobile devices.

What are the main applications of Flutter?

Flutter is a versatile UI toolkit that can be used for a variety of applications such as:

Mobile app development

Flutter's primary use case is building high-quality, native-like mobile applications for both Android and iOS platforms using a single codebase. This saves time, resources, and ensures consistency across platforms.

Web app development

Flutter for web allows developers to create responsive web applications using the same codebase as their mobile app, making it easier to maintain and synchronize updates across platforms.

Desktop app development

Flutter can also be used to develop desktop applications for Windows, macOS, and Linux with the same codebase, further expanding its cross-platform capabilities.

Embedded systems

Flutter can be used in embedded systems, such as smart displays, kiosks, and automotive infotainment systems, to create visually appealing and responsive user interfaces.


Due to its rapid development capabilities and Hot Reload feature, Flutter is a great choice for quickly creating functional prototypes to validate app concepts and design ideas.

Progressive Web Apps (PWAs)

Flutter can be used to build PWAs, which are web applications that can be installed on devices and offer native-app-like experiences, such as offline capabilities and push notifications.

E-commerce apps

Flutter's customizable widgets and cross-platform capabilities make it an ideal choice for developing e-commerce applications that need to work seamlessly across multiple platforms and devices.

Social media apps

Flutter can be used to create social media applications that require real-time updates, smooth animations, and visually appealing interfaces.

Enterprise and productivity apps

Flutter is suitable for developing enterprise applications, such as project management tools, time trackers, or CRM systems, where consistent UI and cross-platform compatibility are important.

Gaming and multimedia apps

While Flutter may not be the first choice for high-performance 3D games, it can be used to create casual 2D games or multimedia apps that require smooth animations and graphics.

These are just a few examples of the many possible uses for Flutter. Its flexibility, performance, and cross-platform capabilities make it an attractive choice for various types of app development projects.

Pros and Cons of Using Flutter


Cross-platform development

As mentioned before, Flutter allows developers to build apps for multiple platforms, including iOS, Android, and the web, using a single codebase. This saves time and resources compared to developing separate apps for each platform.

Fast development process

Flutter's "hot reload" feature enables developers to see the results of code changes almost instantly, without needing to restart the app. This speeds up the development process and allows for quicker iterations.

Customizable UI

Flutter comes with a rich set of built-in Material Design and Cupertino widgets, which makes it easy to create highly-customized user interfaces. The UI can be easily adapted to different screen sizes and resolutions.

Strong community and support

Flutter has a growing community of developers, which contributes to a large ecosystem of packages and plugins. Google's backing also ensures continued support and development for the framework.

High performance

Flutter uses the Skia graphics engine, which enables it to provide high-performance rendering and smooth animations. The Dart programming language, used in Flutter, is also optimized for performance on mobile devices.

Access to native features

Flutter provides a simple way to access native platform features through platform channels, which makes it easier to integrate with device-specific functionality such as camera, GPS, sensors, and more.

Lower development costs

Developing and maintaining a single codebase for multiple platforms can significantly reduce the overall cost of development, as developers don't need to create and maintain separate codebases for Android and iOS.

Consistent UI experience

Since Flutter uses its own rendering engine, it provides a consistent UI experience across different devices and platforms, irrespective of the native components.

Faster time-to-market

The ease of development and code sharing across platforms allows developers to build and launch apps faster, giving businesses a competitive edge in the market.

Active development

Google actively invests in the Flutter framework, which means it receives regular updates, bug fixes, and new features, ensuring that the platform continues to evolve and improve over time.


Large app size

Flutter apps tend to be larger than native apps, which can result in longer download times and increased storage requirements for users. This may be a concern for users with limited storage on their devices.

Limited third-party libraries

Although Flutter's ecosystem is growing rapidly, it might still lack some specific libraries or plugins compared to more mature platforms like native Android or iOS development.

Native platform limitations

While Flutter allows for cross-platform development, there might be cases where certain native features or platform-specific optimizations are not available or more difficult to implement in Flutter.

Learning curve

Developers new to Flutter will need to learn the Dart programming language and the framework's specific design patterns, which can take time, especially for those unfamiliar with the language.

Limited support for older devices

Flutter requires a minimum of Android API level 16 (Jelly Bean) and iOS 8.0. This might exclude a small percentage of older devices from running Flutter apps.

New technology

Flutter is relatively new compared to other established platforms like native Android or iOS development. While it is rapidly gaining popularity, some companies might be hesitant to adopt a newer technology due to concerns about stability or support.

Limited native look and feel

Although Flutter provides Material Design and Cupertino widgets, achieving a truly native look and feel on both platforms might be more challenging compared to using native development tools.

Battery consumption

As Flutter uses its own rendering engine, it might consume more battery than native apps in some cases, especially when dealing with complex animations or graphics.

Developer availability

While the Flutter community is growing, there are still more developers experienced in native Android or iOS development. Finding developers with Flutter expertise might be more challenging, depending on your location or project requirements.

Integration complexity

Although Flutter offers access to native features, integrating with some third-party services or APIs might be more complex compared to native development, as it might require additional coding or customization.

Overall, Flutter is a powerful framework for mobile app development that offers numerous advantages, such as cross-platform development, fast development process, and customizable UI. Hopefully this article has provided you with enough information to gain a more comprehensive understanding of the benefits and potential drawbacks of using Flutter, and helps you decide whether it is the right choice for your project.


Martin Dejnicki
Martin Dejnicki

Martin is a digital product innovator and pioneer who built and optimized his first website back in 1996 when he was 16 years old. Since then, he has helped many companies win in the digital space, including Walmart, IBM, Rogers, Canada Post, TMX Group and TD Securities. Recently, he worked with the Deploi team to build an elegant publishing platform for creative writers and a novel algorithmic trading platform.