# Master Math Island vs CHRC

The clearest difference is in-app purchases: CHRC at none against Master Math Island's 10. Master Math Island's advantage is update cadence (every 4 months vs every 25 months) and iOS requirement (13.0 vs 15.6). On price, ads and device support there is nothing between them.

Both are free to download. Master Math Island sells 7 one-off in-app purchases. CHRC asks for nothing beyond the download.

Master Math Island ships an update every 4 months, CHRC every 25 months. The most recent releases landed on October 5, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Master Math Island | CHRC |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (4 ratings)](https://appshunter.io/ios/app/master-math-island/id6449206772/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 25 months |
| Monetization | Free with in-app purchases | — |
| Size | 498 MB | 50 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Blake eLearning](https://appshunter.io/developer/530378341) | [Winona Esolutions Ltd.](https://appshunter.io/developer/1586761795) |

## What reviewers say

### Master Math Island

[App page](https://appshunter.io/ios/app/master-math-island/id6449206772)

This app offers a fun and engaging way to learn and practice math for ages 7-70. Through hundreds of motivating games, users can conquer number facts, build confidence, and earn in-game rewards while developing their math skills in an immersive world.

**Highlights:** Step-by-step math learning sequence, Hundreds of motivating math games, In-game rewards and progress tracking, World building and island customization, Practice basic math facts, Enhance recall, speed, and accuracy

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Simple Bundle | $2.99 | one-time |
| Big Bundle | $5.99 | one-time |
| Modest Bundle | $7.99 | one-time |
| Big Bundle | $9.99 | one-time |
| Big Bundle | $12.99 | one-time |
| Big Bundle | $14.99 | one-time |
| Complete Bundle | $19.99 | one-time |


### CHRC

[App page](https://appshunter.io/ios/app/chrc/id6469047299)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Master Math Island free?

Master Math Island is free to download, with in-app purchases available.

### Is CHRC free?

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

### Do Master Math Island or CHRC have ads?

Neither Master Math Island nor CHRC shows ads.

### Which is updated more often, Master Math Island or CHRC?

Master Math Island ships an update every 4 months, and CHRC every 25 months. Most recently, Master Math Island was updated on October 5, 2026 and CHRC on October 7, 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.*