The Pascal Programming Compiler app allows users to write Pascal code directly on their iPhone, iPad, and iPod Touch. Ideal for learning and testing code snippets, Pascal is a language designed by Niklaus Wirth to promote good programming practices. Named after Blaise Pascal, this app offers features such as compiling and running programs, viewing output and errors, a custom keyboard for easy input, optimized for external keyboards, and an advanced source code editor with syntax highlighting.

Pascal Programming Compiler comes with limitations including the need for an internet connection for compilation, a maximum program running time of 20 seconds, limitations on file system, network, and graphics functions, and support for batch compilation only. Interactive programs are not supported, requiring users to enter input prior to compilation.