# 臓器ゲーム vs RollingFlagBall

臓器ゲーム and RollingFlagBall are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. 臓器ゲーム sells 6 one-off in-app purchases and RollingFlagBall sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly every 4 days. Both last shipped on October 14, 2026.

## The numbers

| Metric | 臓器ゲーム | RollingFlagBall |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 4 days | Every 4 days |
| Monetization | Free with in-app purchases | — |
| Size | 117 MB | 152 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [株式会社Loxarc](https://appshunter.io/developer/1750807804) | [Akina Kubota](https://appshunter.io/developer/988867741) |

## What reviewers say

### 臓器ゲーム

[App page](https://appshunter.io/ios/app/mergepuzzle/id6504057451)

Merge identical organs to evolve them into larger ones. Aim for a high score by preventing organs from overflowing the beaker. Compete for the top spot on the score rankings.

**Highlights:** Organ merging and evolution, High score chasing, Score rankings, Prevent overflow gameplay, Simple puzzle mechanics

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| コイン100 | $0.49 | one-time |
| 広告非表示 | $1.99 | one-time |
| コイン600 | $2.99 | one-time |
| コイン1500 | $6.99 | one-time |
| コイン3200 | $12.99 | one-time |
| コイン9000 | $34.99 | one-time |


### RollingFlagBall

[App page](https://appshunter.io/ios/app/rollingflagball/id6737237717)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AdRemove | $0.99 | one-time |
| AllAdRemove | $1.99 | one-time |


## Frequently asked questions

### Is 臓器ゲーム free?

臓器ゲーム is free to download, with in-app purchases available.

### Is RollingFlagBall free?

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

### Do 臓器ゲーム or RollingFlagBall have ads?

Both 臓器ゲーム and RollingFlagBall show ads.

### Which is updated more often, 臓器ゲーム or RollingFlagBall?

臓器ゲーム ships an update every 4 days, and RollingFlagBall every 4 days. Most recently, 臓器ゲーム was updated on October 14, 2026 and RollingFlagBall on October 14, 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.*