# Turing’s Machine Lite vs Chess Openings Coach

The clearest difference is in-app purchases: Turing’s Machine Lite at none against Chess Openings Coach's 2. Turing’s Machine Lite also leads on device support (3 vs 1) and iOS requirement (8.0 vs 18.0). Chess Openings Coach's advantage is update cadence (every 2 months vs every 9 months). On price and ads there is nothing between them.

Both are free to download. Chess Openings Coach sells 2 in-app purchases, starting at $4.99 per month. Turing’s Machine Lite asks for nothing beyond the download.

Turing’s Machine Lite ships an update every 9 months, Chess Openings Coach every 2 months. The most recent releases landed on November 2, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Turing’s Machine Lite | Chess Openings Coach |
| --- | --- | --- |
| 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 | No |
| Update frequency | Every 9 months | **Every 2 months** |
| Monetization | Free | — |
| Size | 78 MB | 3 MB |
| Requires iOS | **8.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [DBRG Ltd.](https://appshunter.io/developer/964613425) | [Mitaanshu Agarwal](https://appshunter.io/developer/1896724075) |

## 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


### Chess Openings Coach

[App page](https://appshunter.io/ios/app/chess-openings-coach/id6773210563)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Chess Openings Coach Pro Monthly | $4.99 | per month |
| Chess Openings Coach Pro Yearly | $24.90 | per year |


## Frequently asked questions

### Is Turing’s Machine Lite free?

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

### Is Chess Openings Coach free?

Chess Openings Coach is free to download, with in-app purchases available.

### Do Turing’s Machine Lite or Chess Openings Coach have ads?

Neither Turing’s Machine Lite nor Chess Openings Coach shows ads.

### Which is updated more often, Turing’s Machine Lite or Chess Openings Coach?

Turing’s Machine Lite ships an update every 9 months, and Chess Openings Coach every 2 months. Most recently, Turing’s Machine Lite was updated on November 2, 2026 and Chess Openings Coach on October 31, 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.*