# Tiamat vs Turing Machine

The clearest difference is in-app purchases: Turing Machine at none against Tiamat's 6. Turing Machine also leads on update cadence (every 5 days vs every 2 weeks) and iOS requirement (15.2 vs 26.0). Tiamat's advantage is ratings volume (107 vs 2). On price, rating, ads and device support there is nothing between them.

Both are free to download. Tiamat sells 3 one-off in-app purchases. Turing Machine asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.9 for Tiamat against 5.0 for Turing Machine. That said, the two scores are not equally well evidenced: Tiamat has 107 ratings behind it against 2, so its average is the more settled of the two.

Tiamat ships an update every 2 weeks, Turing Machine every 5 days. The most recent releases landed on October 14, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Tiamat | Turing Machine |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.9 (107 ratings)](https://appshunter.io/ios/app/tiamat-cellular-automata/id1580189385/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/turing-machine-simulator/id1608855567/reviews)** |
| Number of ratings | **107** | 2 |
| Positive reviews | 92.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 5 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 34 MB | 1 MB |
| Requires iOS | 26.0 | **15.2** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [GEORGY OSTROBROD](https://appshunter.io/developer/1875865758) | [Rustam Khakhuk](https://appshunter.io/developer/1586606475) |

## What reviewers say

### Tiamat

[App page](https://appshunter.io/ios/app/tiamat-cellular-automata/id1580189385)

Explore a cellular automata simulator that allows you to create and customize complex patterns using simple rules. Discover mesmerizing worlds of order and chaos, experiment with transformations, and enjoy a therapeutic experience.

**Highlights:** Create and customize rulesets, Design and save intricate patterns, Transform existing patterns, Adjust simulation speed, Access a library of pre-built patterns, Choose from field presets, Supports BS, SB, and HROT rulestrings

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Developer tip | $1.99 | one-time |
| Developer tip | $4.99 | one-time |
| Developer tip | $6.99 | one-time |


### Turing Machine

[App page](https://appshunter.io/ios/app/turing-machine-simulator/id1608855567)

This application allows users to write and execute algorithms on a Turing machine. It is designed to help engineering students in higher education practice and verify their work with algorithms.

**Highlights:** Write algorithms, Execute algorithms, Verify algorithm work, Turing machine simulation, Educational tool for engineering students

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Tiamat free?

Tiamat is free to download, with in-app purchases available.

### Is Turing Machine free?

Turing Machine is free to download, with no in-app purchases.

### Which has better reviews, Tiamat or Turing Machine?

Turing Machine is rated higher. Tiamat averages 4.9 out of 5 from 107 ratings, while Turing Machine averages 5.0 from 2 ratings.

### Do Tiamat or Turing Machine have ads?

Neither Tiamat nor Turing Machine shows ads.

### Which is updated more often, Tiamat or Turing Machine?

Tiamat ships an update every 2 weeks, and Turing Machine every 5 days. Most recently, Tiamat was updated on October 14, 2026 and Turing Machine on October 1, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*