Comparison

Multitape Turing Machine vs ARURAKU

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Turing machine simulation
  • Symbol manipulation on tape
  • Abstract computation model
  • Algorithm understanding
  • State and head movement
Read full description

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

About

ARURAKU

Features
Read full description

An educational visualization app that lets you UNDERSTAND algorithms by watching them — not by reading. Three classic areas of computer science come alive with interactive animations: Sorting, Searching, and Recursion. [ Sorting - 6 algorithms ] - Bubble Sort / Selection Sort / Insertion Sort - Merge Sort / Quick Sort / Heap Sort Race Mode runs multiple algorithms side by side on the same array — feel the difference in complexity at a glance. [ Searching - 4 algorithms ] - Breadth-First Search (BFS) / Depth-First Search (DFS) - Dijkstra's Algorithm / A* Search Visualize pathfinding on a grid maze. You can place walls yourself. [ Recursion ] - Tower of Hanoi - Fractals: Koch curve, Sierpinski triangle, recursive tree [ Features ] - Grasp WHAT IS HAPPENING through color and motion - Adjustable speed, step-by-step execution, multiple array presets - Each algorithm includes mechanism, complexity, pros and cons, and real-world usage notes - Ads never interrupt the animation - designed to preserve focus - Universal app for iPhone and iPad - Japanese and English (follows OS language) [ Who is this for ] - Students learning programming for the first time - Anyone preparing for IT exams - Engineers who want to deepen their intuition about algorithms - Curious minds who love watching things move [ Note on pricing ] This app is completely free with no in-app purchases or subscriptions. To support development and maintenance we display Google AdMob banner and interstitial advertising. Ads are never shown while an algorithm animation is playing. The first information-systems title of the Raku Series.

Screenshots

Multitape Turing Machine4 screens
ARURAKU4 screens

Verdict

The call

The clearest difference is ads: Multitape Turing Machine at none against ARURAKU's shown. ARURAKU's advantage is update cadence (every 2 months vs every 8 months). On price, in-app purchases, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Multitape Turing Machine ships an update every 8 months, ARURAKU every 2 months. The most recent releases landed on October 10, 2026 and October 7, 2026 respectively.

Scorecard2 real differences · 8 level
Multitape Turing Machine versus ARURAKU: the parameters behind the verdict, then further details
ParameterMultitape Turing MachineARURAKU
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 8 monthsEvery 2 months — better
AdsNo — betterYes
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.0 — better17.0
Further details — not scored
Size2 MB6 MB
Age rating4+4+
DeveloperDenis MandychFuji Bit Inc.

In-app purchases

None

Multitape Turing Machine

No in-app purchases

None

ARURAKU

No in-app purchases

Questions

Is Multitape Turing Machine free?
Multitape Turing Machine is free to download, with no in-app purchases.
Is ARURAKU free?
ARURAKU is free to download, with no in-app purchases.
Do Multitape Turing Machine or ARURAKU have ads?
ARURAKU shows ads; Multitape Turing Machine does not.
Which is updated more often, Multitape Turing Machine or ARURAKU?
Multitape Turing Machine ships an update every 8 months, and ARURAKU every 2 months. Most recently, Multitape Turing Machine was updated on October 10, 2026 and ARURAKU on October 7, 2026.

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