The mobile world is evolving at a breakneck pace, and it’s no longer practical for small teams to maintain three separate codebases for iOS, Android, and the web. This approach drains resources, increases development time, and complicates ongoing maintenance.
Flutter, a framework incubated by Google, solves this problem by enabling teams to build high-quality mobile and web apps from a single code base without sacrificing performance or developer experience. It’s fast, efficient, and ideal for teams that want to move quickly while keeping costs in check.
We’ve helped clients rebuild their apps in Flutter, trained internal teams on how to use the framework effectively, and supported smooth transitions from legacy codebases to Flutter based solutions. Whether you’re starting from scratch or modernizing an existing app, Flutter makes it easier to build for the future today.
As a cross platform app developer, that started out as a native app developer, I believe it is important to transition to ensure the highest user satisfaction by ensuring new features are built in a timely manner with the same quality for both iOS and Android devices.
Apps that were converted into Flutter:
Visited
Visited popular travel app (2.5+ million downloads) where users can scratch off their travel bucket list on a real-time world map, search thousands of curated lists and compare their travel journeys with their friends. The app was developed with Flutter on the front end with a Spring Boot/Java server running on AWS. Visited is meticulously optimized to run its real-time map through the GPU. The app can process thousands of data points and millions of users without dropping any frames.
Want to convert your app to Flutter? Or converted an have issues? Brian can help!
Frequently asked questions about converting app into Flutter?
Converting an app from native code (like Objective-C, Swift, or Java) to Flutter/Dart depends largely on the complexity of the original app. However, in most cases, it takes only a fraction of the time compared to building the app from scratch.
For example, MemoryMatch2, a mobile game, originally took 3–6 months to develop using native technologies. When re-developed in Flutter, the process took just about one month with no compromise on quality or functionality.
Similarly, Visited, a travel app with a wide range of features, took years to develop separately for Android and iOS. But with Flutter, the app was rebuilt in just a few months, with noticeable improvements in performance and user experience.
Flutter’s ability to handle cross-platform development from a single code base not only saves time and cost, but also makes it easier to maintain and scale your app moving forward.
Yes, adding AI functionality to your existing Flutter/Dart mobile app is not only possible—it can be done efficiently and effectively.
Flutter apps can integrate with powerful large language models (LLMs), connect to custom AI agents, and even interact with Python based AI services, creating a unified, intelligent app experience. Whether you’re looking to add chat functionality, automate tasks, personalize user interactions, or analyze data, AI integration can significantly enhance your app’s capabilities.
With the right architecture, your Flutter app can serve as the front-end while AI models and services work behind the scenes seamlessly delivering smart features to your users.
Yes, Brian Kayfitz Development Corporation also offers:
- Flutter training for teams
- Flutter development training and mentorship
- Flutter code reviews
- Mobile app strategy
The cost of converting a native app to Flutter depends primarily on the development time required, which is influenced by the complexity of your app.
The good news is that since the features, functionality, and design have already been established during the original app build, much of the planning and decision making is already done. This significantly reduces the time and cost of redevelopment.
Additionally, by moving to Flutter, you’ll save time and resources long-term, as you’ll no longer need to maintain two separate codebases for iOS and Android. One code base means faster updates, easier bug fixes, and more efficient feature rollouts.
- Reduce costs with cross platform mobile app development
- Reduce time of development by having one code based for iOS and Android
- Same quality as any native technology such as Swift or Kotlin.
According to Flutter freelancer, Brian Kayfitz the process is fairly straight forward:
1. App Feature Analysis
Before any development begins, we start by identifying which features will be carried over to the new app. After years of iteration, some features may no longer be relevant or effective. As a mobile app consultant, Brian will guide you through a feature audit to determine what stays, what goes, and what can be improved—helping you shape a clear, focused app roadmap.
2. Architecture Planning
With the roadmap in place, the next step is defining the right architecture and framework. A strong architectural foundation ensures your app is scalable, efficient, and future-ready. Brian will help you build a structured plan for how the app should be rebuilt in Flutter.
3. Design Strategy
To save time and development effort, we’ll evaluate whether to use existing third-party design packages or build a custom UI/UX. Either way, the design will be tailored to your branding and optimized for performance with the updated Flutter code base.
4. Development
As an experienced Flutter app developer, Brian focuses on writing clean, high-performance code. The goal is to deliver a seamless cross-platform experience without sacrificing speed, responsiveness, or quality.
5. Team Training
Once your app has been successfully transitioned to Flutter, Brian can provide Flutter training and mentorship to your internal team. This includes guidance on maintaining the app, understanding the new code base, and building new features going forward.
6. Ongoing Maintenance
As a Flutter freelancer, Brian remains available for ongoing support, feature updates, performance enhancements, and bug fixes. Whether you need occasional help or ongoing partnership, you’ll have a trusted expert ready to support your app post-launch.
It all starts with a simple form submit to get your app converted from native to Flutter, by a senior app developer.