# Turing’s Machine Lite vs Ajedrez Caïssa chess

The clearest difference is in-app purchases: Turing’s Machine Lite at none against Ajedrez Caïssa chess's 1. Turing’s Machine Lite also leads on ads (none vs shown) and iOS requirement (8.0 vs 13.0). Ajedrez Caïssa chess's advantage is update cadence (every 9 days vs every 9 months). On price and device support there is nothing between them.

Both are free to download. Ajedrez Caïssa chess sells 1 one-off in-app purchase. Turing’s Machine Lite asks for nothing beyond the download.

Turing’s Machine Lite ships an update every 9 months, Ajedrez Caïssa chess every 9 days. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Turing’s Machine Lite | Ajedrez Caïssa chess |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (4 ratings)](https://appshunter.io/ios/app/turings-machine-lite/id1114457564/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 9 months | **Every 9 days** |
| Monetization | Free | — |
| Size | 78 MB | 52 MB |
| Requires iOS | **8.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [DBRG Ltd.](https://appshunter.io/developer/964613425) | [DAMIAN HERNAN SINAY](https://appshunter.io/developer/1886611617) |

## What reviewers say

### Turing’s Machine Lite

[App page](https://appshunter.io/ios/app/turings-machine-lite/id1114457564)

Experience the original chess computer program conceived by Alan Turing. Play against a classic engine or a modern, stronger version. Includes puzzles, practice levels, and two-player modes for a virtual chessboard experience.

**Highlights:** Original TuroChamp implementation, Modern engine up to 2000 Elo, Puzzles and practice levels, Two-player modes (Bluetooth/LAN), Virtual chessboard (Tabletop mode), Mini-tournament mode, Elo rating estimation

**Features:** macOS Compatibility

**In-app purchases:** none


### Ajedrez Caïssa chess

[App page](https://appshunter.io/ios/app/ajedrez-caissa-chess/id6774562943)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Quitar anuncios | $3.99 | one-time |


## Frequently asked questions

### Is Turing’s Machine Lite free?

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

### Is Ajedrez Caïssa chess free?

Ajedrez Caïssa chess is free to download, with in-app purchases available.

### Do Turing’s Machine Lite or Ajedrez Caïssa chess have ads?

Ajedrez Caïssa chess shows ads; Turing’s Machine Lite does not.

### Which is updated more often, Turing’s Machine Lite or Ajedrez Caïssa chess?

Turing’s Machine Lite ships an update every 9 months, and Ajedrez Caïssa chess every 9 days. Most recently, Turing’s Machine Lite was updated on October 24, 2026 and Ajedrez Caïssa chess on October 28, 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.*