Browse categories
Explore
Fiverr Pro
English
$
USD
I will develop mobile apps using flutter xamarin maui avalonia, blazor
harrywilsonliam
About this gig
Need a high-performance mobile app for Android and iOS? I'll develop a professional cross-platform mobile application using Flutter, Xamarin, .NET MAUI, or Avalonia.
Whether you need a business app, custom mobile app, Android application, iOS app, hybrid mobile app, API integration, migration from Xamarin Forms to .NET MAUI, real-time tracking, streaming app, or mobile UI development, I can help. I specialize in Flutter, Xamarin, Xamarin Forms, .NET MAUI, Avalonia, Blazor, C#, XAML, and cross-platform mobile development.
Why work with me
With experience building cross-platform mobile applications, I focus on creating scalable, responsive, and user-friendly apps that perform smoothly on Android and iOS devices.
What you get
Flutter app development
Xamarin & Xamarin Forms apps
.NET MAUI development
Avalonia application development
Android & iOS compatibility
API integration
Mobile UI/UX implementation
App optimization and bug fixes
Source code delivery
My process
Review your app requirements
Design the architecture and UI
Develop and test the application
Deliver and support deployment
Message me now with your app idea and let's get started.
Get to know harrywilsonliam
harrywilsonliam
UE5 Game Developer or Prototypes, Blueprints and Gameplay Systems
- FromUnited Kingdom
- Member sinceJun 2026
- Avg. response time1 hour
Languages
English, Spanish, French, German, Italian, Arabic
I am a professional Unreal Engine 5 developer specializing in game development, gameplay programming, game prototypes, Blueprint systems, multiplayer features, AI systems, combat mechanics, level design, and custom game mechanics. I build scalable UE5 projects, interactive gameplay systems, survival games, shooter systems, RPG features, and game prototypes designed for testing and production. Whether you need an Unreal Engine game prototype, gameplay system, or full game development solution, I deliver high-quality and optimized results.
FAQ
Do you develop apps for both Android and iOS?
Yes. I build cross-platform mobile apps that work on Android and iOS using Flutter, Xamarin, and .NET MAUI.
Can you migrate Xamarin Forms apps to .NET MAUI?
Yes. I can upgrade and migrate existing Xamarin Forms projects to .NET MAUI.
Do you integrate APIs and third-party services?
Absolutely. I can integrate APIs, payment gateways, maps, authentication systems, and more.
Can you fix bugs in an existing mobile app?
Yes. I can troubleshoot, update, optimize, and improve existing applications.
Will I receive the source code?
Yes. Source code delivery can be included with all development packages.
Can you publish the app to the App Store and Google Play?
Yes. I can assist with deployment and publishing to both platforms.
