# にゃんトレ vs Unscrew Star

The clearest difference is in-app purchases: にゃんトレ at none against Unscrew Star's 11. にゃんトレ also leads on ads (none vs shown) and update cadence (every 10 days vs every 5 weeks). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Unscrew Star sells 11 one-off in-app purchases. にゃんトレ asks for nothing beyond the download.

にゃんトレ ships an update every 10 days, Unscrew Star every 5 weeks. The most recent releases landed on October 25, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | にゃんトレ | Unscrew Star |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.9 (2.5K ratings)](https://appshunter.io/ios/app/unscrew-star-3d-puzzle-game/id6760698152/reviews)** |
| Number of ratings | — | **2.5K** |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 10 days** | Every 5 weeks |
| Monetization | — | Free with in-app purchases |
| Size | 33 MB | 307 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [takayuki atsumi](https://appshunter.io/developer/1495474977) | [举 郑](https://appshunter.io/developer/1455340783) |

## What reviewers say

### にゃんトレ

[App page](https://appshunter.io/ios/app/brain-training-cat/id6443437726)

**In-app purchases:** none


### Unscrew Star

[App page](https://appshunter.io/ios/app/unscrew-star-3d-puzzle-game/id6760698152)

Engage in satisfying 3D puzzle-solving by unscrewing and rotating intricate objects. This game offers a relaxing, stress-free experience with vibrant visuals and soothing ASMR sounds, perfect for unwinding or mental stimulation.

**Highlights:** Intricate 3D puzzle solving, Relaxing, no-stress gameplay, Vibrant 3D visuals, Offline play supported, Intuitive tap controls, Soothing ASMR sounds

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

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 300 Coins | $1.99 | one-time |
| Daily Pack | $1.99 | one-time |
| Remove Ads | $4.99 | one-time |
| 900 Coins | $4.99 | one-time |
| No Ads Bundle | $6.99 | one-time |
| Master Bundle | $9.99 | one-time |
| 1900 Coins | $9.99 | one-time |
| Giant Bundle | $19.99 | one-time |
| 6500 Coins | $24.99 | one-time |
| Legendary Bundle | $29.99 | one-time |
| 38000 Coins | $99.99 | one-time |


## Frequently asked questions

### Is にゃんトレ free?

にゃんトレ is free to download, with no in-app purchases.

### Is Unscrew Star free?

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

### Do にゃんトレ or Unscrew Star have ads?

Unscrew Star shows ads; にゃんトレ does not.

### Which is updated more often, にゃんトレ or Unscrew Star?

にゃんトレ ships an update every 10 days, and Unscrew Star every 5 weeks. Most recently, にゃんトレ was updated on October 25, 2026 and Unscrew Star on October 28, 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.*