# Unit Gacha ! vs KIGAKU

The clearest difference is in-app purchases: KIGAKU at none against Unit Gacha !'s 2. Unit Gacha !'s advantage is ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

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

Unit Gacha ! ships an update every 3 weeks, KIGAKU fortnightly. The most recent releases landed on October 28, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Unit Gacha ! | KIGAKU |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Size | 47 MB | 24 MB |
| Requires iOS | 13.0 | 13.0 |
| 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 |


### KIGAKU

[App page](https://appshunter.io/ios/app/kigaku/id6766719349)

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

**In-app purchases:** none


## Frequently asked questions

### Is Unit Gacha ! free?

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

### Is KIGAKU free?

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

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

KIGAKU shows ads; Unit Gacha ! does not.

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

Unit Gacha ! ships an update every 3 weeks, and KIGAKU fortnightly. Most recently, Unit Gacha ! was updated on October 28, 2026 and KIGAKU on October 25, 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.*