My Lisp

My Lisp

A Lisp interpreter

17 ratings
16 reviews
#85 in paid Developer Tools
📚 Education
🛠️ Developer Tools
$3.99

Details

  • Released
  • Updated
  • November 7, 2017
  • March 9, 2025
My Lisp screenshot #1 for iPhone
My Lisp screenshot #2 for iPhone
My Lisp screenshot #3 for iPhone
My Lisp screenshot #4 for iPhone
My Lisp screenshot #5 for iPhone
My Lisp screenshot #6 for iPhone
My Lisp screenshot #7 for iPhone
My Lisp screenshot #8 for iPhone
My Lisp screenshot #9 for iPhone
My Lisp screenshot #10 for iPhone
iphone
ipad
🖼️Get Icon
Icons↘︎

About

A comprehensive Lisp programming environment for iOS and macOS devices. It offers a local interpreter, editor, and extensive libraries for learning and developing Lisp programs, including advanced mathematical functions and symbolic derivation.

Local Lisp interpreter
Integrated editor
Core and mathematical operators
Advanced mathematics functions
Symbolic derivation module
Library and example files
User and reference manuals
Show original description

What's New in My Lisp

2.14

March 9, 2025

- Turtle push/pop functions. - New examples. - Minor fixes. - Documentation and user manual.

More

Charts

Top Paid

📈 85+5

Developer Tools

This app rose +5 positions in Developer Tools chart.

Last updated on July 20, 2026.

User reviews

Scrolling needs improvement

In the Console, when you fill it up the last line is off the bottom so you can’t see the result or what you are typing. Other than that it works great.

Oh...

Since I can’t copy and paste from the website, it’s difficult to use it for checking the behavior of sample code.

Thank you!

At first glance, a very nice implementation of LISP on the Mac, with which AI programming (Peter Norvig, 1991) can be learned wonderfully

Very nice iOS implementation

Nice lisp interpreter I’m on iOS. It’s fast and extensible. Includes a number of examples. Nice editor and other tools included. Can’t beat the price.

MAJOR FUNCTIONS MISSING

This app is useless. Most functions from common lisp say ‘undefined function’. There isn’t even an array function. Basic functions such as defun are missing. Is there a way to get them in there, and if so how to define them? We don’t know because the ‘help’ tab is also useless.

Response from developer

The help page provides the list of the functions along with an access to the user manual in PDF format that may answer a few of your questions. The examples may also be a good starting point to understand the difference between My Lisp and the dialect of Lisp you are used to. As far as defun is concerned, the My Lisp “equivalent” is define.

Developer apps

FAQ

What is My Lisp?

My Lisp is a complete Lisp environment that runs directly on your iPhone, iPad, and Mac. It includes a local interpreter, an editor, and extensive libraries for programming and learning Lisp.

What Lisp dialects does My Lisp support?

My Lisp is true to the original John McCarthy Lisp implementation and also incorporates core and mathematical operators from dialects like Le Lisp, Lisp 1.5, MacLisp, Common Lisp, and Scheme.

Does My Lisp require an internet connection?

No, My Lisp operates entirely locally on your device. The interpreter executes directly on your iPhone, iPad, or Mac without needing any server connection.

What kind of mathematical functions are included in My Lisp?

My Lisp features built-in functions for advanced mathematics, including complex numbers and numerical analysis tools like a roots and zeros finder and integral approximation.

Can I learn Lisp using My Lisp?

Yes, My Lisp provides library and example files with source code for classical functions and problems, serving as a reference for learning Lisp and developing your own programs.

How much does My Lisp cost?

My Lisp is a paid application priced at $3.99. This one-time purchase provides access to the full Lisp environment and its features.

What devices is My Lisp compatible with?

My Lisp is designed to run on Mac, iPhone, and iPad devices, offering a consistent Lisp development experience across the Apple ecosystem.

How often is My Lisp updated?

The latest version, 2.14, was last updated on March 9, 2025. Updates typically include new features, bug fixes, and performance improvements for the Lisp environment.