# Another Turing Machine vs Lucid

The clearest difference is price: Lucid at Free against Another Turing Machine's $1.99. On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Lucid 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.

## The numbers

| Metric | Another Turing Machine | Lucid |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Daily | — |
| Size | 1 MB | 3 MB |
| Requires iOS | **18.2** | 18.6 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Stefan JOSTEN](https://appshunter.io/developer/949662361) | [Saad Nasser](https://appshunter.io/developer/1785514743) |

## What reviewers say

### Another Turing Machine

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

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

**In-app purchases:** none


### Lucid

[App page](https://appshunter.io/ios/app/lucid-think-clearly/id6758679042)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Another Turing Machine free?

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

### Is Lucid free?

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

### Do Another Turing Machine or Lucid have ads?

Neither Another Turing Machine nor Lucid shows ads.

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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.*