# どっちが長い？（あそんでまなぶ！シリーズ） vs Aqua Room

The clearest difference is in-app purchases: Aqua Room at none against どっちが長い？（あそんでまなぶ！シリーズ）'s 2. Aqua Room also leads on ads (none vs shown). どっちが長い？（あそんでまなぶ！シリーズ）'s advantage is update cadence (every 4 months vs every 15 months) and iOS requirement (9.0 vs 13.0). On price and device support there is nothing between them.

Both are free to download. どっちが長い？（あそんでまなぶ！シリーズ） sells 2 one-off in-app purchases. Aqua Room asks for nothing beyond the download.

どっちが長い？（あそんでまなぶ！シリーズ） ships an update every 4 months, Aqua Room every 15 months. The most recent releases landed on November 1, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | どっちが長い？（あそんでまなぶ！シリーズ） | Aqua Room |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 4 months** | Every 15 months |
| Size | 22 MB | 122 MB |
| Requires iOS | **9.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [UNI-TY INC.](https://appshunter.io/developer/433109975) | [LITALICO Inc.](https://appshunter.io/developer/716482369) |

## What reviewers say

### どっちが長い？（あそんでまなぶ！シリーズ）

[App page](https://appshunter.io/ios/app/id875715480)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 広告非表示 | $2.99 | one-time |
| 回数制限解除 | $2.99 | one-time |


### Aqua Room

[App page](https://appshunter.io/ios/app/aqua-room/id1434798203)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is どっちが長い？（あそんでまなぶ！シリーズ） free?

どっちが長い？（あそんでまなぶ！シリーズ） is free to download, with in-app purchases available.

### Is Aqua Room free?

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

### Do どっちが長い？（あそんでまなぶ！シリーズ） or Aqua Room have ads?

どっちが長い？（あそんでまなぶ！シリーズ） shows ads; Aqua Room does not.

### Which is updated more often, どっちが長い？（あそんでまなぶ！シリーズ） or Aqua Room?

どっちが長い？（あそんでまなぶ！シリーズ） ships an update every 4 months, and Aqua Room every 15 months. Most recently, どっちが長い？（あそんでまなぶ！シリーズ） was updated on November 1, 2026 and Aqua Room on November 6, 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.*