Developers can use the Flutter app, a recently introduced SDK, to build Android and iOS apps. The open-source Flutter framework and portable UI toolkit were created by Google to facilitate the development of stunning, cross-platform applications for desktop, mobile, and web.

Building high-quality native interfaces on iOS and Android is made easy with Flutter, Google's mobile app SDK. Flutter, developed in May 2017, includes its own IDE, debugging tools, and more. The programming language utilized here is Dart, which was created by Google in October 2011.  

Here are bullet points on the top Flutter app development trends in 2024 based on the information you provided:

Key Features :

Single Codebase : Flutter's widgets play a critical role in app design and are integral to its cross-platform functionality.

Hot Reload : This feature preserves the state of output even during runtime code edits, allowing for seamless changes without the risk of losing critical state.

Advanced API : Flutter's support for advanced APIs such as HTTP and REST empowers developers to create apps with faster, smoother animations and efficient use of HTTP resources.

Easy Testing : Applications developed with Flutter are easy to test, eliminating the need for extensive cross-platform testing.

MVP Development : Flutter is ideal for building Minimum Viable Products due to its open-source nature, low maintenance, easy testing, and single codebase, saving time and capital for developers.

Google Support : As a product developed by Google, Flutter offers strong support, featuring code reusability and hot reload, making it cost-effective and efficient for hybrid app development.

Cross-Platform Native Performance : Flutter's combination of cross-platform reach with native performance makes it attractive to big organizations like BMW, positioning it as one of the leading cross-platform app development frameworks.

These trends showcase the growing popularity and potential impact of Flutter in the mobile app development landscape in 2024.