# GameStrong Performance vs Diamond Chalk

The clearest difference is in-app purchases: GameStrong Performance at none against Diamond Chalk's 4. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Diamond Chalk sells 4 in-app purchases, starting at $9.99 per month. GameStrong Performance asks for nothing beyond the download.

GameStrong Performance ships an update every 9 days, Diamond Chalk every 3 weeks. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | GameStrong Performance | Diamond Chalk |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/gamestrong-performance/id6756390247/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 3 weeks |
| Monetization | Free | — |
| Size | 4 MB | 14 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [GameStrong Performance Psychology Inc.](https://appshunter.io/developer/1860416015) | [RYAN LEE HOUSE](https://appshunter.io/developer/1870067298) |

## What reviewers say

### GameStrong Performance

[App page](https://appshunter.io/ios/app/gamestrong-performance/id6756390247)

This app offers an interactive training experience for young athletes, integrating performance psychology to build confidence, resilience, and focus. It aims to help athletes perform at their best by developing mental skills alongside physical ones. Access is provided through participating sports organizations.

**Highlights:** Interactive digital training, Performance psychology integration, Builds confidence and resilience, Enhances focus, Supports physical skill development, Accessible via sports organizations

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

**In-app purchases:** none


### Diamond Chalk

[App page](https://appshunter.io/ios/app/diamond-chalk/id6809303789)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Coach — Monthly | $9.99 | per month |
| Diamond Chalk Pro | $19.99 | per month |
| Coach — Yearly | $79.99 | per year |
| Diamond Chalk Pro | $159.99 | per year |


## Frequently asked questions

### Is GameStrong Performance free?

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

### Is Diamond Chalk free?

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

### Do GameStrong Performance or Diamond Chalk have ads?

Neither GameStrong Performance nor Diamond Chalk shows ads.

### Which is updated more often, GameStrong Performance or Diamond Chalk?

GameStrong Performance ships an update every 9 days, and Diamond Chalk every 3 weeks. Most recently, GameStrong Performance was updated on November 5, 2026 and Diamond Chalk 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.*