Comparison

FractionAndProbability vs Kids World Flags

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

Head to head

FractionAndProbability

Learn flags explore the world!

Free

📚 Education

No ratingsView app →

About

FractionAndProbability

Features

Read full description

カードをめくり、あたりを見つけながら、分数と確率を学ぶことができる革新的なアプリです。

About

Kids World Flags

Features

Read full description

Flaglings helps kids (and grown-ups) learn world flags in a simple, playful way. Browse a clean list of large flags with country names, search by name or code (US, France…), then test your memory in the quiz: guess the country by picking 1 of 4. Features: Learn mode: big flags + clear country names Search by country name or ISO code Quiz mode: 4-choice questions Flag Connect Game Multiple languages

Screenshots

FractionAndProbability1 screens

Kids World Flags4 screens

Verdict

The call

The clearest difference is update cadence: FractionAndProbability at every 2 days against Kids World Flags's every 2 weeks. Kids World Flags's advantage is iOS requirement (13.0 vs 16.6). On price, ads, in-app purchases and device support 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

FractionAndProbability ships an update every 2 days, Kids World Flags every 2 weeks. The most recent releases landed on October 28, 2026 and October 25, 2026 respectively.

Scorecard2 real differences · 4 level

FractionAndProbability versus Kids World Flags: the parameters behind the verdict, then further details
Parameter	FractionAndProbability	Kids World Flags
Price	Free	Free
Update frequency	Every 2 days — better	Every 2 weeks
Ads	Yes	Yes
In-app purchases	No	No
Devices	iPhone, iPad	iPhone, iPad, iPod — better
Requires iOS	16.6	13.0 — better
Further details — not scored
Size	3 MB	38 MB
Age rating	4+	4+
Developer	Katsuhiko Yao	Anh Nguyen

In-app purchases

None

FractionAndProbability

No in-app purchases

None

Kids World Flags

No in-app purchases

Questions

Is FractionAndProbability free?

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

Is Kids World Flags free?

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

Do FractionAndProbability or Kids World Flags have ads?

Both FractionAndProbability and Kids World Flags show ads.

Which is updated more often, FractionAndProbability or Kids World Flags?

FractionAndProbability ships an update every 2 days, and Kids World Flags every 2 weeks. Most recently, FractionAndProbability was updated on October 28, 2026 and Kids World Flags on October 25, 2026.