List of the Top 4 Mobile App Development Software for C# in 2025

Develop seamless applications for Mobile, Web, and Desktop platforms using C#, XAML, and .NET, the innovative and open-source framework designed to create authentic single-source, multi-platform solutions. With this approach, you can achieve an impressive 99% reuse of both business logic and UI components across various native environments, all while ensuring pixel-perfect design integrity and the option to incorporate platform-specific functionalities or distinctive visual styles. The familiarity of C# and XAML is complemented by advanced productivity features such as hot reload, hot restart, and edit-and-continue, making the development process more efficient. Popular development environments like Visual Studio, Visual Studio Code, and Rider can be utilized to optimize your workflow. Furthermore, a wealth of support options is available from both the community and official channels, including chat, ticketing systems, and screen-sharing for real-time assistance, ensuring that you have the resources to resolve issues effectively. Engaging with this dynamic community not only provides you with answers but also fosters collaboration and inspiration, making every step of your development journey more enjoyable and rewarding.

Avalonia UI enables developers to build cross-platform applications with .NET, embodying the principle of write once, run anywhere. This approach not only saves time but also allows you to focus on enhancing your product. Regarded as a spiritual successor to WPF, Avalonia UI provides a developer experience that capitalizes on years of accumulated knowledge and investment. JetBrains recognized Avalonia UI as the top framework for modernizing their tools originally based on WPF. Currently, it serves over 170,000 companies, including 431 listed in the Fortune 500. As the popularity of Avalonia UI continues to rise, we have witnessed remarkable expansion in our developer community. By joining us, you can become an integral part of this dynamic and supportive network of developers. Engaging with others in the community can lead to valuable insights and collaborative opportunities.

This completely free and adaptable open-source application framework enables developers to create apps for both Android and iOS using .NET and C#. By utilizing .NET and C#, developers can craft native applications that serve the extensive range of devices, including billions of Android smartphones, iPhones, iPads, Macs, and Windows PCs worldwide. Moreover, it promotes code sharing with any .NET application, significantly boosting productivity and facilitating swift app development across multiple platforms. Are you prepared to enhance your code-sharing abilities? Xamarin.Forms, an open-source mobile UI framework from Microsoft, is specifically designed for building applications for iOS, Android, and Windows with a single codebase. Whether you are looking for a consistent look across different platforms or a more native user experience, Xamarin.Forms allows for a quick and efficient start. Additionally, .NET is a robust developer platform that encompasses a wide range of tools, programming languages, and libraries that aid in the development of diverse applications. With Xamarin, the .NET developer platform is enriched with specialized tools and libraries tailored for creating applications on Android, iOS, tvOS, watchOS, macOS, and Windows, thus expanding your development possibilities. This seamless integration empowers developers to efficiently create cross-platform applications, making it easier than ever to reach a broader audience. Ultimately, the combination of these tools provides a powerful environment for innovation and creativity in app development.

An adaptable open-source development toolkit facilitates the building of mobile applications compatible with both Android and iOS systems. Utilizing Fuse, developers can design native mobile user interfaces through an intuitive UX Markup language, while JavaScript serves to carry out the business logic. The UX Markup is a simplified, declarative XML-like language tailored for crafting dynamic user experiences, supported by an advanced layout engine and GPU-accelerated graphics. This language has been designed to be both highly expressive and easy to grasp, reducing the likelihood of errors significantly. Fuse promotes an interactive, real-time workflow, enabling developers to make changes while the project is actively running. With the aid of a local zero-configuration development server, any alterations to UX, scripts, or assets result in nearly instantaneous updates to the live application. This feature not only boosts productivity but also encourages a collaborative environment among developers. Additionally, the emphasis on animations within UX Markup allows for nearly all properties to be animated, creating a more engaging and dynamic user interface experience. This focus on usability and performance makes Fuse a powerful choice for modern mobile application development.