Tcl is a high-level, general-purpose, interpreted, dynamic programming language.
License: Open Source
Apps available for Mac OS X Windows Linux BSD
Swift is a general-purpose, multi-paradigm, compiled programming language. Developed by Apple Inc.
Apps available for Mac OS X Linux
Tcl is a simple scripting language primarily used for embedded applications and testing, while Swift is a modern programming language designed for iOS and macOS development, emphasizing safety and performance.