FireMonkey
FireMonkey is a cross-platform application framework developed by Embarcadero Technologies for building native applications that run on Windows, macOS, iOS, Android, and Linux. It provides a single codebase for creating visually rich, high-performance apps with a unified UI and business logic across multiple operating systems. The framework is integrated into Delphi and C++Builder IDEs, leveraging the Object Pascal and C++ languages.
Developers should learn FireMonkey when they need to build cross-platform desktop and mobile applications from a single codebase, particularly if they are already using Delphi or C++Builder for rapid application development. It is ideal for scenarios requiring native performance and a consistent user interface across platforms, such as business tools, data visualization apps, or multimedia applications, without relying on web technologies like Electron.