Turing Machine Simulator

Turing Machine Simulator

by Alexander Clauss

4 ratings
13 reviews
$2.99

Details

  • Released
  • Updated
  • January 28, 2009
  • September 15, 2025

Features

Turing Machine Simulator screenshot #1 for iPhone
Turing Machine Simulator screenshot #2 for iPhone
Turing Machine Simulator screenshot #3 for iPhone
Turing Machine Simulator screenshot #4 for iPhone
iphone
ipad
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About

This application simulates Turing Machines, a fundamental concept in computer science and mathematics for analyzing algorithm computability. It offers a digital alternative to paper-and-pencil simulations, allowing users to write, execute, and analyze programs step-by-step with adjustable execution speeds.

Turing Machine simulation
Program execution and analysis
Step-by-step execution
Adjustable execution speed
Export/import programs via email
Includes example programs
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What's New in Turing Machine Simulator

2.4

September 15, 2025

- Support for iOS 26 (Liquid Glass) added - Support for dynamic fonts (accessibility features) added - Bugfix: fixes an issue where the tape inscription of an tape that is infinite on both sides was only preserved for one side, after a turing program has finished running (this is usually not critical, because for a new run you would normally create a new tape inscription instead of reusing the old one)

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User reviews

Good program

I can’t put a name for a program I create, and I can’t modify its alphabet. I’m supposed to be able to but the changes are not saved. This surprised me because it’s a sleek app otherwise. I’m hoping this will be fixed quickly and I will revise my rating if so. Not good for a paid app to have showstopper bugs like this.

EDIT: I figured out that I wasn’t tapping DONE. If you edit the name or the alphabet, and tap away to a different section, the changes will be SHOWN on screen still but will not be saved. I still think this is a bug, but there’s a workaround (just tap DONE after each edit) so it’s not a showstopper. Upgrading my rating therefore.
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Really nice Turing simulation

I've tried a few other Turing sims and this one is the best so far. It's pretty flexible and relatively intuitive to operate with decent documentation and links to more information. The examples are pretty neat and are even commented. Overall, a nice app for the price.

Excellent

An exceptionally good app, with all the features it should have—and with a clean, intuitive, and well-designed interface that makes it a pleasure to use.

Good, but it has a few glitches.

Every time I try to delete an instruction, it exits to the main menu. Other than that, it worked just fine.

Tut was es soll

Der Preis ist etwas hoch aber es funktioniert gut.

Developer apps

FAQ

What is the Turing Machine Simulator?

The Turing Machine Simulator is a digital tool designed to help students and professionals understand and experiment with Turing Machines, a key model in theoretical computer science and mathematics for analyzing computability.

How does the Turing Machine Simulator help with learning?

It provides an interactive environment to write, execute, and analyze Turing Machine programs step-by-step, offering a more comfortable and efficient alternative to manual paper-and-pencil simulations.

Can I save and share my Turing Machine programs?

Yes, the app allows you to export your Turing programs via email, making it easy to save your work or share it with others for collaboration or review.

Does the Turing Machine Simulator offer pre-made examples?

Yes, the application comes with several example Turing programs that users can explore and learn from, providing a starting point for understanding its capabilities.

What devices is the Turing Machine Simulator compatible with?

The Turing Machine Simulator is available for iPhone, iPad, and iPod devices, offering a portable solution for studying theoretical computer science concepts.

How often is the Turing Machine Simulator updated?

The app was last updated on September 15, 2025, indicating ongoing support and potential for future improvements and bug fixes.

What is the user sentiment for the Turing Machine Simulator?

Based on the available data, the app has a very high rating of 4.8 stars from 4 ratings, suggesting strong positive user sentiment among its users.

What is the price of the Turing Machine Simulator?

The Turing Machine Simulator is a paid application, available for $2.99, offering a one-time purchase for access to its features.