# gemgem400 vs Easy Number Practice

The clearest difference is in-app purchases: Easy Number Practice at none against gemgem400's 5. Easy Number Practice also leads on update cadence (every 4 days vs every 3 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. gemgem400 sells 5 in-app purchases, starting at $79.99 per month. Easy Number Practice asks for nothing beyond the download.

gemgem400 ships an update every 3 weeks, Easy Number Practice every 4 days. The most recent releases landed on October 27, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | gemgem400 | Easy Number Practice |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/gemgem400-pinkfong-gemgem/id6475764223/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 4 days** |
| Monetization | Free with in-app purchases | — |
| Size | 276 MB | 10 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Gemgem therapeutics Inc.](https://appshunter.io/developer/1661909612) | [jinyeoung kang](https://appshunter.io/developer/6811534606) |

## What reviewers say

### gemgem400

[App page](https://appshunter.io/ios/app/gemgem400-pinkfong-gemgem/id6475764223)

Engaging rehabilitation games designed to help individuals with limited movement on one side of the body or those needing fine motor skill improvement. The app encourages daily voluntary movements to promote neuroplasticity and build confidence through playful activities.

**Highlights:** Playful rehabilitation games, Fine motor skill improvement, Encourages voluntary movements, Promotes neuroplasticity, Builds self-confidence, Regularly updated content

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 잼잼400 정기 구독(Silver) | $79.99 | per month |
| 잼잼400 정기 구독(Gold) | $99.99 | per month |
| 잼잼400 정기 구독 - BASIC | $149.99 | per month |
| 잼잼400 정기 구독 - SILVER | $199.99 | per month |
| 잼잼400 정기 구독 - GOLD | $389.99 | per month |


### Easy Number Practice

[App page](https://appshunter.io/ios/app/easy-number-practice/id6811534604)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is gemgem400 free?

gemgem400 is free to download, with in-app purchases available.

### Is Easy Number Practice free?

Easy Number Practice is free to download, with no in-app purchases.

### Do gemgem400 or Easy Number Practice have ads?

Neither gemgem400 nor Easy Number Practice shows ads.

### Which is updated more often, gemgem400 or Easy Number Practice?

gemgem400 ships an update every 3 weeks, and Easy Number Practice every 4 days. Most recently, gemgem400 was updated on October 27, 2026 and Easy Number Practice on October 26, 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.*