# Unit Gacha ! vs ARURAKU

The clearest difference is in-app purchases: ARURAKU at none against Unit Gacha !'s 2. ARURAKU also leads on update cadence (every 8 days vs every 3 weeks). Unit Gacha !'s advantage is ads (none vs shown) and iOS requirement (13.0 vs 17.0). On price and device support there is nothing between them.

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

Unit Gacha ! ships an update every 3 weeks, ARURAKU every 8 days. The most recent releases landed on October 28, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Unit Gacha ! | ARURAKU |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | **Every 8 days** |
| Size | 47 MB | 9 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| 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 |


### ARURAKU

[App page](https://appshunter.io/ios/app/aruraku-algorithms-in-motion/id6772939433)

**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 ARURAKU free?

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

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

ARURAKU shows ads; Unit Gacha ! does not.

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

Unit Gacha ! ships an update every 3 weeks, and ARURAKU every 8 days. Most recently, Unit Gacha ! was updated on October 28, 2026 and ARURAKU on October 31, 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.*