LispPad

LispPad is a simple, lightweight, integrated development environment for developing and running Scheme code on macOS and iOS.

The language supported by LispPad is based on the R7RS standard of the Scheme programming language. The tool comes with a fully integrated Scheme interpreter, a console with a read-eval-print loop to interact with the interpreter, and a text editor for writing Scheme code, supporting syntax highlighting, smart indentation, parenthesis matching, text completion, page guides, etc.