Comparison

鬼計算 vs Four Operations Math

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

Head to head
About

鬼計算

Features
Read full description

【鬼計算】 計算問題をといて遊ぶ、計算ゲームアプリ! 小学生でも楽しめるレベル1から大人でも苦戦するレベル鬼まで。 むずかしい問題もなんどもちょうせんしてクリアしよう! 【使い方】 遊びたいモードとレベルをせんたくして問題をといていこう。 まちがえちゃうとHPがへっちゃう! HPがなくなるまえに10問といてクリアしよう。 【機能一覧】 ・たす、ひく、かける、わるの四則演算をクイズ形式で出題 ・レベル1〜3、鬼を実装 ・シェアボタン

About

Four Operations Math

This puzzle game challenges players to create mathematical equations using four numbers and basic arithmetic operations to reach a target value. It promotes logical thinking and problem-solving skills through engaging gameplay with varying challenges.

Highlights
  • Create mathematical equations
  • Use four numbers and operations
  • Achieve target values
  • Logical thinking development
  • Basic and Custom game modes
  • Intuitive tap and drag controls
Features
Read full description

This is a challenging puzzle game in which the player creates a mathematical equation that achieves a target value using four given numbers and four arithmetic operations. Players must use their logical thinking and creativity to reach a different target value each time. ■ Rules * Use all numbers: All four numbers provided must be used one at a time. * Four arithmetic operations and parentheses: Add, subtract, multiply, divide, and use parentheses as many times as you like. * Target value achievement: Try to make the formula match the target value, which changes each time. ■ Operation * Tap a panel: Tap the bottom panel to add it to the end of the formula. * Drag a panel: Drag a panel to add it anywhere in the formula. * Drag & Drop: Added panels can be dragged and dropped to any desired location. * Delete panel: Added panels can be deleted by double tapping on them. ■ Game Modes * Basic Mode: The target value and the four numbers to be used are determined at random. * Custom Mode: You decide the target value and the four numbers to be used. ■ Features * Intuitive operation: Simple and easy-to-use controls allow anyone to enjoy the game immediately. * Different challenges each time: The target value changes each time, so there is always a fresh challenge awaiting you. * Promotes logical thinking: Solving puzzles develops your logical thinking and problem-solving skills. Test your computational and logical thinking skills and hone your skills while having fun. Let's give it a try!

Screenshots

鬼計算4 screens
Four Operations Math4 screens

Verdict

The call

The clearest difference is ads: Four Operations Math at none against 鬼計算's shown. Four Operations Math also leads on update cadence (every 8 days vs every 5 months). 鬼計算's advantage is iOS requirement (15.2 vs 17.0). 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

鬼計算 ships an update every 5 months, Four Operations Math every 8 days. The most recent releases landed on October 8, 2026 and October 6, 2026 respectively.

Scorecard3 real differences · 7 level
鬼計算 versus Four Operations Math: the parameters behind the verdict, then further details
Parameter鬼計算Four Operations Math
PriceFreeFree
Rating—5.0 (1 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—1 — better
Update frequencyEvery 5 monthsEvery 8 days — better
AdsYesNo — better
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPod — betteriPhone
Requires iOS15.2 — better17.0
Further details — not scored
Size12 MB21 MB
Age rating4+4+
Developermasaaki gennoRomiick LLC

In-app purchases

None

鬼計算

No in-app purchases

None

Four Operations Math

No in-app purchases

Questions

Is 鬼計算 free?
鬼計算 is free to download, with no in-app purchases.
Is Four Operations Math free?
Four Operations Math is free to download, with no in-app purchases.
Do 鬼計算 or Four Operations Math have ads?
鬼計算 shows ads; Four Operations Math does not.
Which is updated more often, 鬼計算 or Four Operations Math?
鬼計算 ships an update every 5 months, and Four Operations Math every 8 days. Most recently, 鬼計算 was updated on October 8, 2026 and Four Operations Math on October 6, 2026.

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