# My Lisp — user reviews > 16 indexed App Store user reviews of My Lisp by Laurent Rodier, rated 4.10/5 from 17 ratings. - Source: https://appshunter.io/ios/app/my-lisp/id1245341806/reviews - App overview in markdown: https://appshunter.io/ios/app/my-lisp/id1245341806.md - Rating breakdown: 5★ 10 · 4★ 4 · 3★ 0 · 2★ 0 · 1★ 3 ## Most critical reviews (10 lowest-rated) ### 1/5 — MAJOR FUNCTIONS MISSING *2020-09-10* 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. **Developer response:** 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. ### 1/5 — Undefined functions *2019-05-20* It’s wast of money since most of functions in Autolisp language is not defined in library of this app . For example setq Getint getpoint and so on . Idk how should i use this app considering this point . Reply to developer : Could you tell me where i would be able to find list of functions in this program ( in order to find equivalent ones to Aulolisp) **Developer response:** Hi, My Lisp is not AutoLisp but a general purpose Lisp engine. You may be able to find equivalent function (set! for setq) or define other functions yourself (using read for setpoint and getint), but you’ll likely not get all AutoLisp. Sorry about it. You can get the list of all the functions and features of My Lisp on the help screen of the application (the green tab), along with a user manual with further details. Cheers ### 2/5 — Oh... *2025-09-20* Since I can’t copy and paste from the website, it’s difficult to use it for checking the behavior of sample code. ### 3/5 — (expt 2 63) looks odd *2019-11-12* (expt 2 63) 9223372036854775807 Otherwise a nice app, hoping to do some serious number crunching with it. ### 3/5 — Key board *2018-07-08* Application killed mystandard iPad board how to Iget it back ### 4/5 — Scrolling needs improvement *2026-02-13* 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. ### 4/5 — Great app. Missing parentheses matching. *2019-09-08* A well implemented app with files app integration and a syntax highlighting editor. If only the app had parentheses matching, this app would rock as hell. Love it, none the less. ### 4/5 — Good APP *2018-12-23* I am learning Scheme using my iPad Pro 11 inch, please fix the display of it. ### 5/5 — Thank you! *2023-11-17* At first glance, a very nice implementation of LISP on the Mac, with which AI programming (Peter Norvig, 1991) can be learned wonderfully ### 5/5 — Very nice iOS implementation *2022-02-17* 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. ## Most praised reviews (6 highest-rated) ### 5/5 — Get it, use it, you won’t regret it *2020-07-19* Has parens matching now. Keeps getting better and better. ### 5/5 — Great for learning LISP *2020-07-04* 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. ### 5/5 — Learn one of the best languages out there *2020-06-16* This app rocks. I love it! ### 5/5 — Brilliant *2020-04-18* Works great, just what I needed to work through sicp on my phone. Thank you! ### 5/5 — Amazing *2019-01-13* I’m in love with this app. The experience of reading the lambda white paper and being able to work through it myself ON MY iPHONE is phenomenal. To any philosophers-in-training out there who are studying “quantitative reasoning,” buy this app now and you can stop asking “what will I use symbolic logic for.” It’s like giving Plato a graphing calculator. Plato’s updated slogan may as well be “let no one know enter philosophy who does not know Lisp.” ### 5/5 — Simply Awesome *2018-11-01* This app is awesome. It’s simple, minimal and easy to use if you know the lisp language. I wish it had graphics capability for games, artwork and charting, sound/ audio capabilities and some interactive capability for screen touch and screen orientation like Pythonista and Codea provide. And access to system functions like the date and time and filesystem. I wish it had a prolog interpreter with lisp source available and an external repository of lisp code like rosettacode.org --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-23.*