Kordo Group

Flutter Development

Flutter, Google’s open-source UI software development kit, has rapidly gained popularity among developers for building natively compiled applications for mobile, web, and desktop from a single codebase. It’s praised for its fast development cycles, beautiful user interfaces, and excellent performance. However, like any technology, Flutter is not without its weaknesses. Understanding these limitations is crucial for developers and businesses to make informed decisions about using the platform for their projects. This article explores the main weaknesses of Flutter, providing insights into areas where it may not be the ideal choice for every application development scenario.

1. Large File Sizes

One of the most cited drawbacks of Flutter is the size of the application it produces. Flutter apps tend to be larger than their native counterparts, primarily due to the need to bundle the Flutter engine along with each app. This engine enables Flutter’s cross-platform capabilities but also adds to the overall size of the deployed application. For developers targeting markets with users on limited data plans or devices with restricted storage, the larger app size could be a significant limitation.

2. Limited Third-Party Libraries and Support

While Flutter’s ecosystem is growing rapidly, it still lags behind the more mature ecosystems of native development platforms like Android (Java/Kotlin) and iOS (Swift/Objective-C). This can lead to situations where developers might not find the specific library or tool they need for advanced or niche functionalities. Although the situation is improving over time with more contributions to the Flutter ecosystem, reliance on third-party libraries that are not as thoroughly tested or widely used as those in native ecosystems can introduce risks.

3. Learning Curve for Dart

Flutter uses Dart, a programming language also developed by Google, which is not as widely adopted as other languages like JavaScript, Java, or C#. Developers new to Flutter must learn Dart, which can add to the initial learning curve. While Dart is designed to be easy to pick up for developers with experience in other object-oriented languages, the necessity of learning a new language can be seen as a barrier to entry for some.

4. Performance Considerations

Although Flutter is designed to offer high-performance applications that are indistinguishable from native apps, there are scenarios where Flutter might not achieve the same level of performance as native development, especially for graphics-intensive applications or those requiring significant device interaction. The performance of Flutter apps is generally excellent, but the abstraction layer it introduces can lead to performance bottlenecks in highly demanding applications.

5. Platform-Specific Functionality

Flutter aims to provide a seamless cross-platform development experience, but there are instances where accessing platform-specific features can be more cumbersome than in native development. While Flutter offers plugins to access device capabilities like camera, GPS, and sensors, implementing custom platform-specific functionality requires writing platform-specific code using platform channels. This can complicate the development process, especially for apps that heavily rely on native capabilities not directly supported by existing Flutter plugins.

6. UI Rendering Differences

Flutter controls every pixel on the screen, which allows for highly customizable and expressive UIs. However, this also means that Flutter apps do not use native UI components but instead mimic them through widgets. While Flutter’s widget library is extensive and can closely replicate native components, there can be subtle differences in behavior or appearance, especially when new platform-specific UI updates are released.


Flutter is an incredibly powerful tool for developing beautiful, high-performance, cross-platform applications quickly. However, its approach to app development comes with trade-offs, including larger app sizes, a learning curve for Dart, limited third-party libraries, performance considerations for highly demanding applications, challenges with platform-specific functionality, and potential UI rendering differences. Developers and businesses should weigh these factors against Flutter’s benefits to determine if it’s the right choice for their specific project needs. As the Flutter ecosystem continues to evolve, it’s likely that many of these weaknesses will be addressed, further solidifying its position as a leading framework for cross-platform development.

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