RISC vs learnFORTH
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
RISC
Simulate a complete 32-bit mobile system, including CPU units and memory. Write and debug assembly code directly on the simulated hardware to understand its inner workings.
- 32-bit system simulation
- CPU unit simulation
- Memory subsystem simulation
- Native assembly coding
- Built-in debugger
- Hardware analysis
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RISC-V Assembly Simulator is a mobile 32-bit system simulator. The app simulates the entire system, all the way from each individual unit on a CPU to the memory subsystem. Write assembly natively to the CPU, with a built-in debugger so you can analyze your code and see what the hardware is doing. This app is designed to allow you to learn how to write assembly from your mobile device, simulating a real CPU at your devices maximum speed. Visualize how the hardware works if you want to, see all the registers, see your entire memory subsystem for each cycle. Learn the components of this individual CPU. This app currently supports the base Int for RV32 along with the M extension, allowing multiplication and division. Dual core systems are supported with the atomic instructions. This app features a built in assembler to allow you to learn to write code along with descriptive errors. Code along with Apple Intelligence, giving you advice and helping you fix bugs along the way (experimental). Natively integrated with your devices file system, allowing seamless transfer between devices and potentially other sources.
learnFORTH
Learn the compact, stack-based Forth programming language through structured daily lessons and interactive exercises. Explore its history and applications in embedded systems and retro computing.
- 90 structured daily lessons
- Interactive REPL with syntax highlighting
- Hands-on exercises with hints
- Progress tracking and daily streaks
- Reverse Polish Notation primer
- Historical notes on Forth dialects
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It's time to learn Forth, the compact stack-based language that powered navigation computers, embedded systems, and a generation of hands-on hackers - and still runs the boot firmware on some retro Sun and Apple hardware. If you ever saw a Jupiter ACE home computer, now is your change to learn about what made it special. This app teaches you to think in words and stacks with 90 short, structured daily lessons, a live REPL you can experiment in right on your phone or iPad, and hands-on exercises with hints (not answers) so you actually learn the ideas. WHAT'S INSIDE • 90 guided lessons across 7 topics: the data stack, words & variables, control flow, loops & recursion, advanced words, data structures, and advanced topics. • A built-in REPL with syntax highlighting so you can type real FORTH and see the stack respond immediately. • Exercises for every lesson, graded on output, with an optional hint if you get stuck. • Daily streaks and per-category progress tracking to keep you moving. You'll learn, promise! • A plain-English primer on Reverse Polish Notation and stack manipulation (DUP, DROP, SWAP, OVER, ROT) for complete beginners. • Historical notes on FORTH's dialects - fig-FORTH, Forth-79, Forth-83, ANS Forth - and which one this app's interpreter follows. • A tip-of-the-hat to the Jupiter ACE, the British home computer from the 1980s that was based on Forth. • A recommended reading list of classic FORTH books, including Starting FORTH and Thinking Forth by Leo Brodie. • Light, dark, and automatic themes. No prior programming experience required. If you've ever wondered how a language with almost no syntax can still get real work done, learnFORTH will show you, one word at a time. Note: This app is free, with all features always available. If you enjoy it, please use the tip feature to thank the author and encourage future development.
Screenshots
Verdict
The clearest difference is update cadence: learnFORTH at every 5 days against RISC's every 2 weeks. learnFORTH also leads on ratings volume (3 vs 1) and iOS requirement (18.6 vs 26.0). On price, rating, review sentiment and ads 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. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for RISC against 5.0 for learnFORTH. Both are backed by a comparable volume of ratings — 1 and 3 respectively. Written reviews split almost evenly too, at 100% and 100% positive.
RISC ships an update every 2 weeks, learnFORTH every 5 days. The most recent releases landed on October 1, 2026 and September 21, 2026 respectively.
| Parameter | RISC | learnFORTH |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (3 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 1 | 3 — better |
| Update frequency | Every 2 weeks | Every 5 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 26.0 | 18.6 — better |
| Further details — not scored | ||
| Size | 3 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Matthew Jacobs | John Kennedy |
Customer experience
RISC
learnFORTH
In-app purchases
RISC
No in-app purchases
learnFORTH
No in-app purchases









