# Quiz for Diver vs 深海探索図鑑

The clearest difference is ads: 深海探索図鑑 at none against Quiz for Diver's shown. 深海探索図鑑 also leads on iOS requirement (15.1 vs 17.6). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Quiz for Diver ships an update fortnightly, 深海探索図鑑 every 2 weeks. The most recent releases landed on September 8, 2026 and May 16, 2026 respectively.

## The numbers

| Metric | Quiz for Diver | 深海探索図鑑 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Fortnightly | **Every 2 weeks** |
| Size | 83 MB | 67 MB |
| Requires iOS | 17.6 | **15.1** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Dojo Kaoru](https://appshunter.io/developer/1773965420) | [Hironobu Aoki](https://appshunter.io/developer/1888522968) |

## What reviewers say

### Quiz for Diver

[App page](https://appshunter.io/ios/app/quiz-for-diver/id6736943248)

**Features:** macOS Compatibility

**In-app purchases:** none


### 深海探索図鑑

[App page](https://appshunter.io/ios/app/id6761268477)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Quiz for Diver free?

Quiz for Diver is free to download, with no in-app purchases.

### Is 深海探索図鑑 free?

深海探索図鑑 is free to download, with no in-app purchases.

### Do Quiz for Diver or 深海探索図鑑 have ads?

Quiz for Diver shows ads; 深海探索図鑑 does not.

### Which is updated more often, Quiz for Diver or 深海探索図鑑?

Quiz for Diver ships an update fortnightly, and 深海探索図鑑 every 2 weeks. Most recently, Quiz for Diver was updated on September 8, 2026 and 深海探索図鑑 on May 16, 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.*