# Crystal Flight vs Another Turing Machine

The clearest difference is price: Crystal Flight at Free against Another Turing Machine's $1.99. Another Turing Machine's advantage is update cadence (daily vs every 5 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Crystal Flight is free to download; Another Turing Machine costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Crystal Flight ships an update every 5 months, Another Turing Machine daily. The most recent releases landed on October 2, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Crystal Flight | Another Turing Machine |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/crystal-flight/id1436396839/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Daily** |
| Monetization | Free | — |
| Size | 4 MB | 1 MB |
| Requires iOS | **17.0** | 18.2 |
| Devices | **iPhone, iPad, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Jeff Weeks](https://appshunter.io/developer/326104308) | [Stefan JOSTEN](https://appshunter.io/developer/949662361) |

## What reviewers say

### Crystal Flight

[App page](https://appshunter.io/ios/app/crystal-flight/id1436396839)

Experience free flight within diverse crystal environments. Navigate your journey by simply tilting your iPhone or iPad to control direction.

**Highlights:** Free flight simulation, Crystal environments, Tilt-to-navigate controls, iPhone and iPad support

**In-app purchases:** none


### Another Turing Machine

[App page](https://appshunter.io/ios/app/another-turing-machine/id6742148242)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Crystal Flight free?

Crystal Flight is free to download, with no in-app purchases.

### Is Another Turing Machine free?

Another Turing Machine costs $1.99, with no in-app purchases.

### Do Crystal Flight or Another Turing Machine have ads?

Neither Crystal Flight nor Another Turing Machine shows ads.

### Which is updated more often, Crystal Flight or Another Turing Machine?

Crystal Flight ships an update every 5 months, and Another Turing Machine daily. Most recently, Crystal Flight was updated on October 2, 2026 and Another Turing Machine on October 9, 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.*