My Lisp
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)))))
According to SubPrice AI's current price data, My Lisp (App Purchase) subscription prices vary significantly across 1 regions. The lowest price region is Japan (¥28.01/mo), the highest is Japan (¥28.01/mo), with maximum savings of 0%.
Global Price Table
App Purchase · 1 regions
| # | Region | Savings | ||
|---|---|---|---|---|
| 1 | 🇯🇵Japan | ¥600JPY | ¥28.01 | — |
Price Trends
* Historical data is simulated for demo purposes
Price Statistics
Plan Features
Prices are sourced from public data. Cross-region purchases carry platform policy risks. We are not responsible for purchase outcomes.
⚠️ Cross-Region Purchase Risks
Cross-region purchases may involve account region restrictions, payment verification, refund difficulties, exchange rate fluctuations, tax changes, and platform policy updates. SubPrice AI provides price information and decision support only. We do not guarantee purchase success or take responsibility for outcomes. Please research the target region's platform policies before proceeding.
Frequently Asked Questions
Which region has the cheapest My Lisp subscription?
According to SubPrice AI data, My Lisp (App Purchase) is currently cheapest in Japan at approximately $3.86/month. Prices may change with exchange rates and platform policies.
How often are My Lisp prices updated?
SubPrice AI automatically scrapes the latest subscription prices from App Store pages across all regions daily, converting them using real-time exchange rates. Data is typically updated around 14:00 Beijing time (06:00 UTC) each day.
What are the risks of cross-region purchases?
Cross-region purchases may involve: 1) Changing your Apple ID region; 2) Needing local payment methods or gift cards; 3) Refunds may be more difficult; 4) Exchange rates may change at renewal; 5) Platforms may restrict cross-region activity. We recommend understanding these risks before proceeding.
Where does SubPrice AI get its price data?
SubPrice AI's price data comes from public App Store pages across regions. We use automated scrapers to fetch subscription prices from 20 App Store regions daily, with real-time exchange rates from Frankfurter API for conversions. All prices are tax-inclusive App Store listed prices.