# Unit Gacha ! vs BUTURAKU

The clearest difference is in-app purchases: BUTURAKU at none against Unit Gacha !'s 2. BUTURAKU also leads on update cadence (weekly vs every 3 weeks). Unit Gacha !'s advantage is ads (none vs shown) and iOS requirement (13.0 vs 15.0). On price and device support there is nothing between them.

Both are free to download. Unit Gacha ! sells 2 one-off in-app purchases. BUTURAKU asks for nothing beyond the download.

Unit Gacha ! ships an update every 3 weeks, BUTURAKU weekly. The most recent releases landed on October 30, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | Unit Gacha ! | BUTURAKU |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | **Weekly** |
| Size | 47 MB | 27 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Shunsuke Nakamura](https://appshunter.io/developer/1828229182) | [Fuji Bit Inc.](https://appshunter.io/developer/1874205957) |

## What reviewers say

### Unit Gacha !

[App page](https://appshunter.io/ios/app/unit-gacha/id6756411322)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock all mechanics problems | $5.99 | one-time |
| Unlock all electromagnetic problems | $5.99 | one-time |


### BUTURAKU

[App page](https://appshunter.io/ios/app/buturaku-physics-simulator/id6759213255)

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

**In-app purchases:** none


## Frequently asked questions

### Is Unit Gacha ! free?

Unit Gacha ! is free to download, with in-app purchases available.

### Is BUTURAKU free?

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

### Do Unit Gacha ! or BUTURAKU have ads?

BUTURAKU shows ads; Unit Gacha ! does not.

### Which is updated more often, Unit Gacha ! or BUTURAKU?

Unit Gacha ! ships an update every 3 weeks, and BUTURAKU weekly. Most recently, Unit Gacha ! was updated on October 30, 2026 and BUTURAKU 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.*