Xcode is an integrated development environment (IDE) developed by Apple for macOS, iOS, watchOS, tvOS, and iPadOS. It provides a comprehensive suite of tools to help developers create apps for the Apple ecosystem. It includes a code editor, debugging tools, source control, a graphical user interface (GUI) builder, and more. Xcode also supports programming languages such as Swift, Objective-C, C++, and more. Xcode can create apps for macOS, iOS, watchOS, tvOS, and iPadOS, which can be submitted to the App Store for distribution. With Xcode, developers can create user interfaces, test and debug their code, and manage project resources. Additionally, Xcode can be used to develop apps for other Apple products such as Apple TV, Apple Watch, and Apple HomePod.
Atom is just a text editor, not a compiler!
Multi-code support covers all but Apple-specific development languages
You can develop very universal programs and games with a graphical user interface, and also implement sound support with UOS! Of course you should also be careful with licensing! Unfortunately, UOS is not quite stable so far, but it can be improved. The compiled program is quite universal under Linux! I have been able to develop many small and medium-sized games with it, but so far for us privately!
Discontinued Aptana is still under development on GitHub but the latest version, 3.6.1, was released in October 2014. It lacks Java 8/9 features, as well as more recent JavaScript and HTML 5 features.
I don't know about you, but I love CodeLite. It's a cross-platform IDE ideal for programming in c-based languages. However, if you want to make iOS apps/games, I would definitely recommend Xcode for mac.
Discontinued No longer in development. The latest version, 5 Beta 9.2 (4.9.9.2), released on February 21, 2005, is still available for download, but a maintained version of Dev-C++ with updated code is https://alternativeapp.info/software/orwell-dev-c- /
Xcode is a complete IDE that includes compilers, emulators, error detection, while Atom is a text editor.