Blumoto vs (LispLab)
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Blumoto
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A Heathkit ET-3400 Simulator. The app simulates a Heathkit ET-3400. This was an inexpensive computer from 1977 for people to learn about computing and programming. With the app you can enter programs in machine code using the keypad and see the result on the 6 LED digits. It emulates the Motorola 6800 8 bit processor and contains the original ROM and 256 bytes of RAM
(LispLab)
Master the Scheme programming language with structured lessons, a built-in interpreter, and interactive exercises. Track your progress and explore functional programming concepts, including a new module for the beginner-friendly Logo language.
- 90 guided Scheme lessons
- Built-in REPL and interpreter
- Exercises with hints
- Progress tracking
- Logo module included
- Light/dark themes
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Learn Scheme, the elegant Lisp dialect that shaped modern programming. (LispLab) helps you go from your first parenthesis to real fluency with 90 structured lessons, a built-in REPL, and hands-on exercises. Study core ideas like lists, functions, recursion, higher-order functions, and data structures one day at a time. Features: • 90 guided Scheme lessons • Built-in REPL and interpreter • Exercises with hints and instant feedback • Progress tracking and daily streaks • Light, dark, and automatic themes • Now includes a Logo module! Logo is a member of the Lisp family, but with graphics and a design to appeal to new programmers. Perfect for beginners, students, and programmers exploring functional programming.
Screenshots
Verdict
The clearest difference is in-app purchases: Blumoto at none against (LispLab)'s 1. Blumoto also leads on iOS requirement (15.0 vs 26.2). (LispLab)'s advantage is update cadence (every 2 months vs every 20 months). On price, ads and device support 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
Both are free to download. (LispLab) sells 1 one-off in-app purchase. Blumoto asks for nothing beyond the download.
Blumoto ships an update every 20 months, (LispLab) every 2 months. The most recent releases landed on September 9, 2026 and September 6, 2026 respectively.
| Parameter | Blumoto | (LispLab) |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | Every 20 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 26.2 |
| Further details — not scored | ||
| Size | 65 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Martin Gernss | John Kennedy |
In-app purchases
Blumoto
No in-app purchases
(LispLab)
- Buy Me a Coffee$0.99
