My Lisp

🇺🇸 United States
Laurent Rodier  | 
48
ASO score
Text
46/100
Reviews
50/100
Graphic
60/100
Other
0/100
rating
App Rating
4.3
rating
Votes
53
rating
App Age
8y 1m
rating
Last Update
Mar 09, 2025

Compare with Category Top Apps

Metrics
Current App
Category Top Average
Difference
Rating
4.27
4.31
-0.9%
Number of Ratings (Voted)
52
13.7K
-100%
App Age
8y 1m
5y 10m
+38%
Price
$4
$1
+307%
In-app Purchases Price
$0
$134
Update Frequency
277d
152d
+82%
Title Length
7
19
-63%
Subtitle Length
18
24
-25%
Description Length
2 214
1 734
+28%
Number of Screenshots
2769
1186
+134 %
Size
19MB
168MB
-89 %

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Ranking Keywords in United States

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Illustration
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Text ASO

Title (
Characters: 7 of 30
)
My Lisp
Subtitle (
Characters: 18 of 30
)
A Lisp interpreter
Description (
Characters: 2214 of 4000
)
My Lisp is a complete and universal Lisp environment running directly on the iPhone, iPad, and Mac. This interpreter is true to the original John McCarthy Lisp implementation with the fundamental 7 operators quote, atom, eq, car, cdr, cons, cond, along with lambda and label. My Lisp also contains core and mathematical operators borrowed from other Lisp dialects (Le Lisp, Lisp 1.5, MacLisp, Common Lisp and Scheme to name a few) to make it easy to learn, program, and most importantly, enjoy Lisp. It also features built-in functions for advanced mathematics, including complex numbers and numerical analysis (roots and zeros finder, integral approximation). The complete description of the fundamental, core, and built-in functions is available using a set of library functions completely written in My Lisp. My Lisp offers an interpreter and an editor, all working on the iPhone, iPad, and Mac, and most importantly, without requiring any server connection, that is, the interpreter is executing locally on the iPhone, iPad or Mac My Lisp is installed on. Library and example files contain the source code of classical functions and problems solved by My Lisp and may be used as reference to learn Lisp and develop other programs. They include classical puzzles (hanoi and n-queens), basic mathematical functions (gcd, lcm, factorial, fibonacci, prime?), and the historical apply, mapcar and maplist functions. The Lambda Calculus example file contains various functions related to Lambda Calculus and Combinators, with alpha-conversion, beta-reduction, de Bruijn notations, etc. As a special note, the example file Symbolic Derivation contains a complete yet extensible symbolic derivation module allowing to compute the formal derivation of virtually any symbolic function expressed as a Lisp expression. A user manual and a reference manual are available from within the application but also on My Lisp web site (https://lisp.lsrodier.net) and in Apple Books. The complete source code of the library and example files is part of My Lisp. Last but not least, this overview couldn’t end without a sample definition of the notorious REPL function: (define (REPL eval_me) (REPL (println (eval (read))))) }
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Rating & Reviews

Reviews Overview
🧐 Coming Soon…
Rating
4.3
53 voters

Some Latest Reviews

Orthia
20 Sep, 2025
2
Since I can’t copy and paste from the website, it’s difficult to use it for checking the behavior of sample code.
davem108
27 Dec, 2024
5
I really like this app it's so much more convenient for both simple and complex maths that I used to use a calculator for. Very happy with this app. After reaching out to the Developer they told me a really useful feature on iOS keyboard that you can press the ABC button and slide right to add a space and not return to the alphabetical keyboard, making it quick to continue adding numbers. Greet App i definitely recommend it.
Jhuysing
25 Feb, 2021
5
Leuke app om snel iets uit te proberen in Lisp, als je bijvoorbeeld in de bus of de trein zit.
Lidia Monroe
10 Sep, 2020
1
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.
DarkRadon
19 Jul, 2020
5
Has parens matching now. Keeps getting better and better.
Alex Popov
04 Jul, 2020
5
I wanted to have on device LISP interpreter to do examples as I go along Peter Norvig AI Paradigm book. This app makes LISP just a swipe away.
Jackstrop
18 Apr, 2020
5
Works great, just what I needed to work through sicp on my phone. Thank you!

Other

Additional Information
Rating:
4.32
Voted: 53
App Store Link:
Price: 3.99 $
Website:
Email: -
Privacy Policy:
Categories: Developer Tools, Education
Size: 18MB
App Age: 8 years 1 month
Release Date: Nov 07, 2017
Last Update: Mar 09, 2025
Version: 2.14
Version history
2.14
Mar 09, 2025
- Turtle push/pop functions. - New examples. - Minor fixes. - Documentation and user manual.
2.11
Sep 01, 2024
- New examples. - Fixes for expt function.
Version history