# Robo Flags. vs 世界の国名クイズ

The clearest difference is update cadence: 世界の国名クイズ at every 10 days against Robo Flags.'s every 4 months. Robo Flags.'s advantage is device support (3 vs 1) and iOS requirement (15.0 vs 17.0). On price, ads and in-app purchases there is nothing between them.

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

Robo Flags. ships an update every 4 months, 世界の国名クイズ every 10 days. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Robo Flags. | 世界の国名クイズ |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 4 months | **Every 10 days** |
| Size | 59 MB | 4 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [MASAHIRO MIZUTANI](https://appshunter.io/developer/368158224) | [Masahiro Tanigawa](https://appshunter.io/developer/6792176111) |

## What reviewers say

### Robo Flags.

[App page](https://appshunter.io/ios/app/robo-flags/id675525282)

**Features:** Vision Pro support

**In-app purchases:** none


### 世界の国名クイズ

[App page](https://appshunter.io/ios/app/id6797205214)

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

**In-app purchases:** none


## Frequently asked questions

### Is Robo Flags. free?

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

### Is 世界の国名クイズ free?

世界の国名クイズ is free to download, with no in-app purchases.

### Do Robo Flags. or 世界の国名クイズ have ads?

Both Robo Flags. and 世界の国名クイズ show ads.

### Which is updated more often, Robo Flags. or 世界の国名クイズ?

Robo Flags. ships an update every 4 months, and 世界の国名クイズ every 10 days. Most recently, Robo Flags. was updated on October 24, 2026 and 世界の国名クイズ 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.*