There are many tools for developers on the market. What makes Delphi one of the most productive development environments is the Rapid Application Development (RAD) paradigm, where you can use reusable components and very quickly assemble them together to create a working application. In Delphi there is hardly any prototyping phase of the project. When you are building an app, it very quickly starts to look like the final product. Most applications work with data. Graphical user interfaces that we design typically display information coming from a database or from a service in the cloud. In Delphi you can preview the data at design time.
There are two visual frameworks in Delphi for building graphical user interfaces. There is the Visual Component Library, the VCL, which is arguably the best library for building native applications for Windows. There...