Comparison

Busy Binary vs 素因数分解キングダム

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

Head to head
About

Busy Binary

Test your brain with a number conversion game. Convert binary to decimal in timed challenges or practice modes. Compete with others for high scores.

Highlights
  • Binary to Decimal Conversion
  • Training Mode
  • Challenge Mode
  • Difficulty Levels (Easy, Normal, Hard)
  • Combo System
  • Global Ranking System
Features
Read full description

Third of a "Busy" series that is "BTD" Let's try to Binary to Decimal!! 【How to play】 ・This game to convert the binary number to decimal number. · Select the correct answer from on the button of the screen and carry it. ・Select the correct answer from ・It is 2 modes of 「Training Mode」and 「Challeng Mode」 ・You can select challenge level from 「Easy」「Normal」「Hard」 「TrainingMODE」 ・It is endless mode and in here you can training freely. ・Let's get the hang of BTD. ・Touch the End button on the screen, you can end the game. Number of your correct answers and total time are display on the screen. 「ChallengeMODE」 ・In this mode, the time limit of 60 seconds. And it will test your speed of answering and accuracy. So it's best to check your ability. ・Come loaded with "Combo System" If you are formed in a succession of answer, it going to be increase speed. ・Link up with Ranking System. Post on your score and compete for scores with your rivals. -Providing Materials- Images「illust AC」 http://www.ac-illust.com Sounds「Maoudamashii」 http://maoudamashii.jokersounds.com Font「Kiyumayaen」 http://sapphire.hacca.jp/

About

素因数分解キングダム

Features
Read full description

素因数分解キングダムはゲームを通じて、素因数分解を学ぶことができるアプリです。 単にゲームとして楽しむだけでなく、定期テスト対策や受験勉強の一環としても活用できます。 また、脳トレとしても効果的なので、学生以外にもおすすめです。 "Prime Factorization Kingdom" is an app that allows users to learn prime factorization through gameplay. Not only can it be enjoyed as a game, but it can also be utilized as part of regular test preparation or entrance exam studies. Additionally, it is effective as a brain-training tool, making it highly recommended not just for students but for people of all ages.

Screenshots

Busy Binary4 screens
素因数分解キングダム3 screens

Verdict

The call

The clearest difference is ads: 素因数分解キングダム at none against Busy Binary's shown. 素因数分解キングダム also leads on update cadence (weekly vs every 6 weeks). Busy Binary's advantage is iOS requirement (9.0 vs 16.0). On price, 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

Busy Binary ships an update every 6 weeks, 素因数分解キングダム weekly. The most recent releases landed on October 6, 2026 and September 28, 2026 respectively.

Scorecard3 real differences · 6 level
Busy Binary versus 素因数分解キングダム: the parameters behind the verdict, then further details
ParameterBusy Binary素因数分解キングダム
PriceFreeFree
Rating4.5 (2 ratings) — better—
Number of ratings2 — better—
Update frequencyEvery 6 weeksWeekly — better
AdsYesNo — better
In-app purchasesNoNo
MonetizationAd-supported—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS9.0 — better16.0
Further details — not scored
Size180 MB55 MB
Age rating4+4+
Developerteruhisa nagatoYuta Matsuda

In-app purchases

None

Busy Binary

No in-app purchases

None

素因数分解キングダム

No in-app purchases

Questions

Is Busy Binary free?
Busy Binary is free to download, with no in-app purchases.
Is 素因数分解キングダム free?
素因数分解キングダム is free to download, with no in-app purchases.
Do Busy Binary or 素因数分解キングダム have ads?
Busy Binary shows ads; 素因数分解キングダム does not.
Which is updated more often, Busy Binary or 素因数分解キングダム?
Busy Binary ships an update every 6 weeks, and 素因数分解キングダム weekly. Most recently, Busy Binary was updated on October 6, 2026 and 素因数分解キングダム on September 28, 2026.

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