# Robo Flags. vs 国旗2020～世界全197カ国の概要＋フラッシュ暗記

The clearest difference is in-app purchases: Robo Flags. at none against 国旗2020～世界全197カ国の概要＋フラッシュ暗記's 1. 国旗2020～世界全197カ国の概要＋フラッシュ暗記's advantage is ads (none vs shown) and update cadence (every 8 days vs every 4 months). On price and device support there is nothing between them.

Both are free to download. 国旗2020～世界全197カ国の概要＋フラッシュ暗記 sells 1 one-off in-app purchase. Robo Flags. asks for nothing beyond the download.

Robo Flags. ships an update every 4 months, 国旗2020～世界全197カ国の概要＋フラッシュ暗記 every 8 days. The most recent releases landed on October 24, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | Robo Flags. | 国旗2020～世界全197カ国の概要＋フラッシュ暗記 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 88.9% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 4 months | **Every 8 days** |
| Monetization | — | Free with in-app purchases |
| Size | 59 MB | 10 MB |
| Requires iOS | 15.0 | **10.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [MASAHIRO MIZUTANI](https://appshunter.io/developer/368158224) | [Ea, Inc.](https://appshunter.io/developer/293212542) |

## What reviewers say

### Robo Flags.

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

**Features:** Vision Pro support

**In-app purchases:** none


### 国旗2020～世界全197カ国の概要＋フラッシュ暗記

[App page](https://appshunter.io/ios/app/2020197/id1197992521)

Learn about 197 countries with flags, capitals, languages, and more. Test your knowledge with flashcards and quizzes to memorize national symbols and facts.

**Highlights:** 197 country flags and data, Country name, capital, language, Time difference, currency, area, population, Flashcard memorization, Region and list-based search, World map exploration, Timed quizzes

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| バナー削除 | $0.99 | one-time |


## Frequently asked questions

### Is Robo Flags. free?

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

### Is 国旗2020～世界全197カ国の概要＋フラッシュ暗記 free?

国旗2020～世界全197カ国の概要＋フラッシュ暗記 is free to download, with in-app purchases available.

### Do Robo Flags. or 国旗2020～世界全197カ国の概要＋フラッシュ暗記 have ads?

Robo Flags. shows ads; 国旗2020～世界全197カ国の概要＋フラッシュ暗記 does not.

### Which is updated more often, Robo Flags. or 国旗2020～世界全197カ国の概要＋フラッシュ暗記?

Robo Flags. ships an update every 4 months, and 国旗2020～世界全197カ国の概要＋フラッシュ暗記 every 8 days. Most recently, Robo Flags. was updated on October 24, 2026 and 国旗2020～世界全197カ国の概要＋フラッシュ暗記 on November 2, 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.*