> For the complete documentation index, see [llms.txt](https://www.lisppad.app/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://www.lisppad.app/readme.md). # Home ### Integrated Scheme development environment for macOS and iOS *LispPad* is a simple, lightweight, integrated development environment for developing and running Scheme code on macOS and iOS. The [language supported by LispPad](/applications/language.md) is based on the [R7RS standard](http://www.r7rs.org/) of the Scheme programming language. LispPad provides the following components: * A fully integrated Scheme interpreter (based on the [LispKit engine](https://github.com/objecthub/swift-lispkit)) * A large range of [supported libraries](/applications/libraries.md) * A text editor supporting syntax highlighting, smart indentation, parenthesis matching, text completion, page guides, etc. * A console with a read-eval-print loop * Support for networking, audio, graphics, compression, Markdown, SQLite, etc. *LispPad* is free and comes in two version: [*LispPad* for macOS](/releases/lisppad.md) and [*LispPad Go* for iOS](/releases/lisppad-go.md). The two versions can synchronize their programs, libraries and assets via iCloud. You can download a [reference manual](https://zenger.org/lisppad/assets/LispPad_Reference_2.2.pdf) documenting all the core LispPad libraries. Please consider joining the [LispPad mailing-list](https://groups.google.com/a/objecthub.com/g/lisppad). ### LispPad on macOS [![](/files/pPOZyeAdIFX43MTpyiTZ)](https://apps.apple.com/de/app/lisppad/id1258939760?l=en\&mt=12)

### LispPad on iOS [![](/files/FiOUQICwLsb8pIDRwKuZ)](https://apps.apple.com/us/app/lisppad-go/id1565747728)