The Assembler vs Multitape Turing Machine
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
The Assembler
Learn Assembly programming and binary operations by creating pixel art. Each chapter introduces new operations, using 8-bit registers as your canvas to manipulate values and paint an 8x8 image. This app offers a fun, introductory approach to coding fundamentals.
- Learn Assembly programming
- Understand binary operations
- Create pixel art on registers
- Ten chapters with progressive learning
- Interactive 8x8 canvas
- Introduction to programming fundamentals
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Learn Assembly programming and binary operations by painting little pixel art pieces. The app teaches different operations in each of the ten chapters. For each of the chapters you program an image with a limited set of commands. Eight rows of 8-Bit Registers turn into your canvas. Use Assembly to manipulate the values in every register, thus creating an 8x8 painting. 'The Assembler' was made as a small and fun introduction to Assembly, Programming and the Binary system that powers it all. The first version of this app was made for the Swift Student Challenge 2022 and won! I hope that you enjoy this project as much as I have.
Multitape Turing Machine
This app simulates a mathematical model of computation, allowing users to explore how abstract machines manipulate symbols on a tape according to defined rules. It's a tool for understanding the fundamental principles of computer algorithms.
- Turing machine simulation
- Symbol manipulation on tape
- Abstract computation model
- Algorithm understanding
- State and head movement
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Multitape Turing Machine Simulator. A Turing machine is a mathematical model of computation describing an abstract machine, that manipulates symbols on a strip of tape according to a table of rules. Despite the model's simplicity, it is capable of implementing any computer algorithm. The machine operates on a memory tape divided into cells, each of which can hold a single symbol drawn from symbols from the alphabet of the machine. It has a "head" that, at any point in the machine's operation, is positioned over one of these cells, and a "state" selected from a set of states. At each step of its operation, the head reads the symbol in its cell. Then, based on the symbol and the machine's own present state, the machine writes a symbol into the same cell, and moves the head one step to the left or the right, or halts the computation. The choice of which replacement symbol to write and which direction to move is based on a table that specifies what to do for each combination of the current state and the symbol that is read. Suggestions: snowlukin@gmail.com
Screenshots
Verdict
The clearest difference is review sentiment: Multitape Turing Machine at 100% against The Assembler's 78%. Multitape Turing Machine also leads on rating (5.0 vs 4.8). The Assembler's advantage is ratings volume (10 vs 1). On price, update cadence, ads and in-app purchases 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.
Multitape Turing Machine holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: The Assembler has 10 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 78% of The Assembler's written reviews are positive against 100% of Multitape Turing Machine's.
The Assembler ships an update every 5 months, Multitape Turing Machine every 8 months. The most recent releases landed on August 17, 2026 and June 1, 2026 respectively.
| Parameter | The Assembler | Multitape Turing Machine |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (10 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 77.8% of reviews | 100.0% of reviews — better |
| Number of ratings | 10 — better | 1 |
| Update frequency | Every 5 months — better | Every 8 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, Vision Pro — better | iPhone, iPad |
| Requires iOS | 17.0 | 16.0 — better |
| Further details — not scored | ||
| Size | 7 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Lena Mattea Stoexen | Denis Mandych |
Customer experience
The Assembler
Multitape Turing Machine
In-app purchases
The Assembler
No in-app purchases
Multitape Turing Machine
No in-app purchases
