Pros and Cons of Flutter App Development [Updated for 2025]

Choosing the right framework is crucial to your project’s success. With new technologies emerging annually, developers and businesses alike are left wondering the same thing: Is Flutter good in 2025?

The short of it? Absolutely! Flutter remains one of the best and most capable frameworks for building fast, cross-platform apps. Backed by Google, it keeps on getting better, with quicker development, richer UI toolkit, and native-like performance on iOS, Android, web, and even desktop.

But why is Flutter good for app development in 2025? In this article, we will cover the pros and cons of Flutter and when it is the best option for your project. And if you are looking for a trusted development partner, OS-System is at your disposal to help you build scalable, efficient, and beautiful mobile applications. Let’s dive in!

Let’s start with the main point: Is Flutter still relevant in 2025?

Yes, Flutter is very much a relevant technology as of 2025. Flutter remains the top cross-platform app development option with its rapid development cycle, rich widget set, and strong support community.

Some reasons for Flutter’s resilience include:

• Google’s Continued Support. Being Google’s sponsored solution, Flutter is still being provided with updates on a regular basis, which favors stability and innovations.
• Widespread Adoption. Alibaba, eBay, BMW, and many other companies have embraced Flutter as their go-to option to create scalable, high-performance apps.
• Multi-Platform Capabilities. Developers can develop apps for mobile, web, desktop, and embedded platforms using a single codebase.
• Performance & UI Flexibility. Flutter’s native-like performance and UI flexibility make it a valid competitor against native development.

Considering Flutter pros and cons, it is a future-safe option for developers.

What is Flutter nowadays?

Google first introduced Flutter in 2015 and gained significant attention when the first commercial Flutter app was released in 2017. It was announced as a cross-platform mobile application development solution based on Google’s SDK and Dart programming language and distributed on an open-source basis.

Mainly, it is based on the object-oriented Dart programming language. The architecture in Flutter is pretty similar to that of React Native, and it is based on reactive programming as well. Thankfully, with the implemented widgets in Flutter, you can create top-notch mobile apps that will look and feel natively for both iOS and Android platforms.

Over the last 2 years, Flutter has grown rapidly and has become a serious competitor to React Native. Next, let’s discuss the pros and cons of using Flutter.

Key pros of Flutter development

The reasons for Flutter mobile app development may vary for you depending on your sphere of interest. As for the application owners, business entrepreneurs, or startup owners, the main reason will be the ability to speed up their applications and reduce the overall app production costs. Still, here are the top 9 benefits of Flutter app development.

Rapid code writing

With Flutter, your developers can code faster, thankfully, to the implemented widgets and built-in SDK. It also allows making changes right away in the app while changing the code of it, which is further essential when bug fixing your mobile application. This is called Hot Reload, and it creates a lot of space for UI/UX designer’s and developer’s cooperation and experiments.

However, there’s still a list of some restrictions, which is a common thing for all of the cross-platform mobile development tech. The full list of Hot Reload features and restrictions you can find here – Hot Reload Documentation.

Add-to-App Functionality

For companies that already have native apps, Flutter has an “Add-to-App” feature, allowing them to incorporate Flutter modules into their existing app. That is, they can transition gradually into Flutter without completely rewriting their entire app from the ground up. This reduces risk while gaining from Flutter’s strengths.

Faster working mobile apps

Flutter allows the creation of faster and more stable applications for multiple platforms while having a single unified codebase. You can create more optimized and smooth solutions with it compared to other cross-platform mobile app development technologies. 

Native-Like Performance

Unlike most other cross-platform frameworks, Flutter does not rely on WebView or JavaScript bridges. Instead, it natively compiles to ARM code through Dart. Therefore, it has high performance, smooth animations (60fps+), and a responsive user interface equal to native apps.

Better UI experience

The technology itself was created to give its users the ability to run and create customizable designs easily with already existing and create label widgets. Besides, with Flutter, your applications will still look the same even on older devices. Flutter runs on Android Jelly Bean or newer, as well as iOS 8 or newer.

Faster mobile app QA process

Because of the one codebase for both iOS and Android platforms, you or your quality assurance team will spend less time on bug testing. Of course, it will work for you only if you have a similar application for both platforms.

Flutter also possesses a very robust testing infrastructure, including:

• Unit tests
• Widget tests
• Integration tests

These allow app developers to test app functionality at every stage, identify bugs early, and meet high-quality requirements before deployment.

Strong Ecosystem & Developer Community

Flutter boasts an extremely large and growing worldwide community. Open-source plugins are contributed to by developers in an active manner. Forums offer support and best practices. Google’s regular updates and long-term engagement keep the framework updated and fresh.

Perfect for MVP

Minimum Viable Product is the best solution for startup entrepreneurs who need to have a working product as soon as possible to attract investors to their project. Because of the previously mentioned features, Flutter is one of the best decisions for MVP mobile development.

Well-Organized Structured Documentation

Google offers detailed documentation with proper descriptions, code excerpts, and best practices. These Flutter benefits provide new developers with a simple beginning and veteran teams with an instant means of locating solutions and optimizing their workflow.

Cons of Flutter app development

While being an attractive decision for startups and the availability of a wide variety of features, it still has some disadvantages. Here are the biggest disadvantages that you should be aware of.

Limited Adoption of Dart

Dart, the language in which Flutter applications are coded, is less adopted compared to JavaScript, Swift, or Kotlin. Even though it is relatively easy to master for professional object-oriented programming programmers, it does not possess any gigantic ecosystem and developer population similar to more popular languages.

This makes the process of recruiting experienced Flutter developers complex and can involve retraining existing teams in moving to Flutter development. Due to fewer learning resources and community solutions, debugging complex issues may be more time-consuming compared to popular languages.

By the way, we want to remind you how to find the right development partner. OS-System is your best choice!

iOS-Specific Issues

Flutter is backed by Google, and although it strives to deliver the same performance on both iOS and Android, there are occasional compatibility issues on Apple devices. Push notifications, background task running, and in-app purchases may require additional native code or third-party packages to function flawlessly on iOS.

Apple’s strict App Store guidelines and frequent iOS updates also occasionally prevent Flutter-based apps from updating at the same rate as new system features. Developers will have to put extra effort into becoming iOS-compatible and face some unforeseen issues resulting from developments in Apple’s environment.

Incomplete Third-Party Library Support

As much as the Flutter ecosystem expands, it is still not as extensive in terms of third-party library support as other native development environments. Most of the widely used SDKs and APIs that have been built for Android (Java/Kotlin) and iOS (Swift/Objective-C) are not directly supported by Flutter.

In this case, the developers may need to create platform-specific custom code (via platform channels) in order to access certain features, and hence, the development time and effort are higher. Even though Flutter is improving here, there could be certain specialized or niche libraries that do not exist.

Higher Resource Consumption

Flutter apps consume more CPU and memory than their native counterparts. The framework’s custom rendering engine maintains high performance at the expense of greater processor power usage. This may translate into more battery use, especially on lower-performing or older devices.

Heavy-computation-load applications such as real-time video processing, games, or AR applications are plagued by performance delays compared to an entirely native approach. App optimization for resource constraints to prevent high usage is crucial for app developers.

Slowed Adoption of New Platform Features

When Google or Apple launches new OS updates, native developers are able to use the fresh features and design concepts directly. Flutter, on the other hand, typically takes some time to integrate these fresh features into its system.

This means that Flutter developers may have to wait for delayed access to fresh platform features, such as new:

• UI elements
• APIs
• Ssystem-wide features.

In fast-paced industries that rely on the latest mobile innovations, this delay can prove to be a drawback.

Not Suitable for Ultra-Lightweight Apps

If your aim is to create an ultra-lightweight app with very low storage usage and almost instant load times, Flutter may not be the ideal choice. Although it offers great performance, the presence of its own rendering engine and framework components leads to a larger file size compared to natively built apps.

For single-function apps, business apps, or small utility apps, native development or lighter frameworks such as SwiftUI (for iOS) or Jetpack Compose (for Android) may be more efficient.

When to Use Flutter for App Development?

Despite its limitations, Flutter is still a very versatile framework for most apps. It offers an efficient and cost-effective solution for developers and businesses that wish to develop high-quality mobile apps. These are the main situations when Flutter is the optimal choice with the benefits of Flutter dev in mind.

You Need to Develop an MVP or Ship Quickly

Flutter is ideal for startups and organizations that need an MVP to be built quickly. Its common codebase facilitates fast development and release on Android and iOS, cutting time-to-market. With its vast library of pre-built widgets and “hot reload” feature, developers are able to quickly iterate and fine-tune their app based on user feedback.

You Need a Scalable App with Long-Term Support

Flutter is backed by Google and continues to enjoy robust community support and regular updates. If you ever decide to scale your app in the future, Flutter provides a future-proof solution with:

• Continuous development
• Improved performance
• Added features

Google’s commitment to Flutter also ensures long-term viability, a wise investment for businesses.

You Want to Integrate Your App with an Existing Native Solution

Flutter’s “Add-to-App” feature allows developers to integrate Flutter modules into existing native apps. This is useful for firms that already possess a native app but want to enrich it with Flutter’s robust UI capabilities. Instead of a full rewrite, companies can introduce Flutter elements incrementally, reducing risks and development expenses.

OS-System Is Your Trusty Sidekick in Developing Mobile Apps

The right partner in development can make your idea for an app become a winner as a produced product. As professionals in the development of speed mobile apps through Flutter and other cutting-edge tech, OS-System is uniquely positioned to provide you with expertise that will best suit your cause.

Flutter and Cross-Platform Development Expertise

Our experience in creating Flutter apps means that your app is created with:

• Best practices
• Optimal efficiency
• Optimal performance

We create cross-platform apps that offer the same experience across iOS and Android.

Fast Time-to-Market Without Compromising Quality

We realize the importance of quick launch, especially for startups and businesses moving into competitive spaces. Through flexible development methodologies and Flutter’s quick development pipeline, we help you take your app to market in a jiffy without sacrificing quality or user experience.

Custom, Scalable, and Feature-Rich Solutions

Regardless of whether you need an MVP or a full-fledged enterprise application, we build solutions that are tailored to your business needs. With our expertise in complex UI/UX design, API integrations, and custom features, your app stands out from the crowd. 

Seamless Integration with Existing Systems

Already have a native application in place? Our development team can integrate Flutter modules into your current system with Flutter’s Add-to-App feature so you can extend your app’s UI and performance functionality without rebuilding completely.

Dedicated Team and Open Communication

Transparency and open communication are important to us at OS-System. Our expert development teams work closely with you to achieve timely delivery, transparency, and mutual alignment to your business vision.

Contact us today to discuss your project!

Conclusion and our recommendations

We believe that Flutter has a lot of potential and will be a growing trend in the near future because of its simplicity in use combined with high-quality user experience. With the pros and cons of Flutter app development, you can rapidly build appealing UI with fast and stable workflow for iOS and Android platforms in the shortest term compared to other similar cross-platform mobile app development solutions. 

Supported by Google, it is the future of cross-platform application development. So, if you are thinking about using Flutter as the main technology for your project – it is definitely worth it.
However, if you still have some doubts about this technology or are looking for a qualified consultancy in the field of mobile app development – contact us!