# Calvin Chess Trainer vs Gambit

The clearest difference is in-app purchases: Calvin Chess Trainer at none against Gambit's 2. Calvin Chess Trainer also leads on iOS requirement (15.0 vs 18.0). On price, ads and device support there is nothing between them.

Both are free to download. Gambit sells 2 in-app purchases, starting at $6.99 per month. Calvin Chess Trainer asks for nothing beyond the download.

## The numbers

| Metric | Calvin Chess Trainer | Gambit |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 days | — |
| Size | 170 MB | 68 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [DAVID MARKLE](https://appshunter.io/developer/1880745263) | [Jack Cornet Paterson](https://appshunter.io/developer/1696442629) |

## What reviewers say

### Calvin Chess Trainer

[App page](https://appshunter.io/ios/app/calvin-chess-trainer/id6759800929)

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

**In-app purchases:** none


### Gambit

[App page](https://appshunter.io/ios/app/gambit-chess-analysis/id6778765225)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $6.99 | per month |
| Yearly | $49.99 | per year |


## Frequently asked questions

### Is Calvin Chess Trainer free?

Calvin Chess Trainer is free to download, with no in-app purchases.

### Is Gambit free?

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

### Do Calvin Chess Trainer or Gambit have ads?

Neither Calvin Chess Trainer nor Gambit 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.*