# Calvin Chess Trainer vs Checkmate Academy

The clearest difference is update cadence: Calvin Chess Trainer at every 5 days against Checkmate Academy's every 2 months. Calvin Chess Trainer also leads on iOS requirement (15.0 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Calvin Chess Trainer ships an update every 5 days, Checkmate Academy every 2 months. Both last shipped on November 9, 2026.

## The numbers

| Metric | Calvin Chess Trainer | Checkmate Academy |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 2 months |
| Size | 170 MB | 15 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [DAVID MARKLE](https://appshunter.io/developer/1880745263) | [Anupam Chugh](https://appshunter.io/developer/1459739274) |

## 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


### Checkmate Academy

[App page](https://appshunter.io/ios/app/checkmate-academy/id6760925352)

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

**In-app purchases:** none


## Frequently asked questions

### Is Calvin Chess Trainer free?

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

### Is Checkmate Academy free?

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

### Do Calvin Chess Trainer or Checkmate Academy have ads?

Neither Calvin Chess Trainer nor Checkmate Academy shows ads.

### Which is updated more often, Calvin Chess Trainer or Checkmate Academy?

Calvin Chess Trainer ships an update every 5 days, and Checkmate Academy every 2 months. Most recently, Calvin Chess Trainer was updated on November 9, 2026 and Checkmate Academy on November 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.*