My Lisp vs Breadpad
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
My Lisp
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
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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)))))
Breadpad
Design and simulate electronic circuits on an interactive digital breadboard. Analyze designs with virtual oscilloscopes and logic analyzers, and perform precise SPICE netlist simulations. Offers a free tier with core features and a premium subscription for advanced analysis and export.
- Interactive digital breadboard
- SPICE netlist simulation
- Virtual oscilloscope and logic analyzer
- Extensive component library
- Custom component creation
- Circuit snapshotting
- Cloud collaboration
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Breadpad is your go-to analog/digital electronics lab, featuring an interactive breadboard and advanced SPICE simulation. Easily add components, wire them up, and analyze your circuits with a virtual oscilloscope and logic analyzer. Execute full SPICE netlists for unparalleled precision. Choose from a vast library of ready-to-use parts or create your own custom elements. Dive in for free or upgrade to unlock powerful data export capabilities and superior simulation features. Free Features: - Effortlessly wire up components on a digital breadboard - Choose from over 400 integrated circuits or craft your custom chips using SPICE - Insert resistors, capacitors, inductors, transistors, and diodes with accurate models - Instantly see how changes affect your circuit with quick-rendering graphs - Take snapshots of your breadboard setups for easy inclusion in documents or online - Import PSPICE and LTSpice netlists for comprehensive simulations (.spice and .cir files) - Work together using iCloud, iMessage, Airdrop, email, Google Drive, OneDrive, and Dropbox - Explore a wide selection of pre-configured diodes and transistors with numerous tweakable settings - Open any .breadpad file at no cost, even those from Premium users - Experience your designs in 3D with Apple Vision Pro Premium subscription unlocks: - Infinite vector plotting from your SPICE simulations - Conduct temperature sensitivity analysis to assess environmental impacts on circuits - Access five extra voltage sources, including piecewise and frequency-modulated options - Export your simulation results to CSV for analysis in tools like Excel, MATLAB, or Python - Directly modify the SPICE netlist for any component on your breadboard - Fine-tune component tolerances using six-sigma gaussian distributions - Analyze manufacturing variance effects with dynamic Monte Carlo simulations Whether you're a student, hobbyist, or professional engineer, Breadpad is the perfect tool for brainstorming, designing, and refining your circuit ideas. Explore new principles, experiment with designs, and optimize existing systems. Get Breadpad today and elevate your circuit simulation experience. Exclusively on iPad, iPhone, Mac, and Vision Pro. Privacy policy: https://breadpad.com/privacy/ Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is price: Breadpad at Free against My Lisp's $3.99. Breadpad also leads on update cadence (fortnightly vs every 6 weeks) and ratings volume (168 vs 18). My Lisp's advantage is review sentiment (69% vs 33%) and in-app purchases (none vs 2). On ads, device support and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Breadpad is free to download; My Lisp costs $3.99 up front. Breadpad sells 2 in-app purchases, starting at $4.99 per month. My Lisp asks for nothing beyond the download.
My Lisp holds the better App Store score, 4.1 against 3.9. That said, the two scores are not equally well evidenced: Breadpad has 168 ratings behind it against 18, so its average is the more settled of the two. Written reviews point the same way: 69% of My Lisp's written reviews are positive against 33% of Breadpad's.
My Lisp ships an update every 6 weeks, Breadpad fortnightly. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.
| Parameter | My Lisp | Breadpad |
|---|---|---|
| Price | $3.99 | Free — better |
| Rating | 4.1 (18 ratings) — better | 3.9 (168 ratings) |
| Positive reviews | 68.8% of reviews — better | 33.3% of reviews |
| Number of ratings | 18 | 168 — better |
| Update frequency | Every 6 weeks | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Freemium — better |
| Best chart rank | #75 — better | — |
| Devices | iPhone, iPad, Mac | iPhone, iPad, Mac, Vision Pro — better |
| Requires iOS | 18.0 | 18.0 |
| Further details — not scored | ||
| Size | 19 MB | 63 MB |
| Age rating | 4+ | 4+ |
| Developer | Laurent Rodier | FreshBizOpps, LLC |
Customer experience
My Lisp
Breadpad
Bugs and requests
My Lisp
Not enough reviews yet to summarise bugs or requests.
Breadpad
Reported bugs
15 issues- App crashes on startup or when creating new breadboard
- App crashes when placing components
- App crashes when using oscilloscope
- App crashes when adding capacitors
- Circuits don't save between sessions
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- SPICE models don't save
- Black screen or blank window on launch
- Breadboard displays then disappears
- Component inventory disappeared after update
- Cannot access components on iPhone
- Oscilloscope shows false resistor value errors
- Chips take a long time to load
- Cannot exit summary after requesting chips
- visionOS version crashes immediately
- File becomes unopenable after oscilloscope crash
Requested features
17 requests- LEDs and LED indicators
- Push buttons and switches
- 555 timer IC
- Comparators in chip library
- Op-amps and more analog components
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- H-bridges
- Motors
- Multimeter functionality
- In-app tutorials and documentation
- Electronics handbook with basic circuits
- Custom chip creation tutorial using SPICE
- Prebuilt circuit templates
- Better component library organization
- One-time purchase option instead of subscription
- Online video demonstrations
- AR experience features
- Physics engine integration
In-app purchases
My Lisp
No in-app purchases
Breadpad
- Monthly Breadpad Subscription7 Days trial$4.991 Month
- Annual Breadpad Subscription1 Month trial$39.991 Year









