Comparison

Robo Flags. vs 世界の国名クイズ

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head

About

Robo Flags.

Features

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Learn national flags in the world. There are a different countries in the world. Symbol that represents each country, it is the national flag. You can see the national flags in Olympic games. National flags are colorful and simple. But there, thought of people living in the country is in. Be interested? Let's start right away.

About

世界の国名クイズ

Features

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「世界の国名クイズ」は、世界の国名・首都・国旗を楽しく学べる無料の学習アプリです。【学習タブ】大陸ごとに分類された国の一覧から、国旗・国名(日本語/英語)・首都を確認できます。国名や首都名での検索にも対応しています。【クイズタブ】「国旗→国名」「国名→首都」「国旗→首都」の3つのモードから選んで、4択クイズに挑戦できます。正解すると、効果音とともに国名や首都名がその国の言葉で発音されます。10問終えると自己ベストスコアが記録され、何度でも挑戦できます。お子様の地理学習から、大人の教養クイズまで、幅広くお楽しみいただけます。

Screenshots

Robo Flags.4 screens

世界の国名クイズ4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

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.

Scorecard3 real differences · 3 level

Robo Flags. versus 世界の国名クイズ: the parameters behind the verdict, then further details
Parameter	Robo Flags.	世界の国名クイズ
Price	Free	Free
Update frequency	Every 4 months	Every 10 days — better
Ads	Yes	Yes
In-app purchases	No	No
Devices	iPhone, iPad, iPod — better	iPhone
Requires iOS	15.0 — better	17.0
Further details — not scored
Size	59 MB	4 MB
Age rating	4+	4+
Developer	MASAHIRO MIZUTANI	Masahiro Tanigawa

In-app purchases

None

Robo Flags.

No in-app purchases

None

世界の国名クイズ

No in-app purchases

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.