Comparison

Bunsuu calculator vs ちょこ暗 算数

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

Head to head
About

Bunsuu calculator

Features
Read full description

[Overview] This is a calculator that allows you to check intermediate steps in fraction calculations. It was created with the aim of enabling supervisors such as educators to easily identify areas of calculation errors. [Main features] 1. When the "=" button is pressed, the calculator switches to fraction mode and displays the intermediate steps of fraction calculations. 2. In addition to basic arithmetic operations between fractions, it also supports mixed fractions, decimals, and negative numbers. 3. By clicking the "=" button or the calculation result display area, the fraction screen can be hidden and the calculator can be used as a normal calculator (allowing continuous calculations). Students should avoid using this calculator unless they cannot find errors in their calculations (it will decrease their computational skills).

About

ちょこ暗 算数

Features
Read full description

「この式見たことある」「またこの答えだ!」 中受算数の頻出式に特化した暗算アプリ! ペンと紙を必要とせず、1演習30秒程度で終わるため、すきま時間にピッタリです。 「暗算」といっても、そろばん有段者が行うような高難易度の計算を行うわけではありません。 算数の途中式によく出てくる計算や約分、比を簡単にしたり、最小公倍数や最大公約数を求めたりと、 実践的な計算に絞りました。 (1) 12×5= (2) 0.125×8= (3) 4×2×3.14= (4) (6×5×4)÷(3×2×1)= (5) 24と36の最小公倍数 というように、中受算数で「あ、見たことある!」となるような計算を集めています。 ピンポイントでよく見かける式を繰り返し練習できるので、「計算速度をあげて、ケアレスミスを防ぐ」という いわゆる計算の基礎力を、効果的に身につけることができます。 ◆主な機能◆ ・難易度別に暗算を行う「暗算トライアル」 ・特定の計算や暗記に特化した「ジャンル別演習」 ・別端末でも同じ問題が出る「簡単対戦モード」 ・成長の軌跡がわかる「ランキング表示」 ◆収録問題ジャンル◆ 基本の計算 ・1桁×2桁のかけ算 ・九九の先の割り算 ・分数の足し算・引き算 他、四則演算 暗記したほうが速い計算 ・0.125の計算 ・円周率のかけ算 ・360の約分 ・平方数のかけ算 工夫する計算 ・結合の法則 ・階段の足し算 ・キセル算 ・2桁×2桁のかけ算 ・19までのかけ算(おみやげ算) よくでる計算 ・三角形の角度の計算 ・多角形の公式 ・円の面積、円周の長さを求める公式 ・比を簡単にする ・最大公約数 ・最小公倍数 ・単位換算 月額料金の支払いによって全問題が解放されますが、 基礎レベルやおすすめの単元は無料で試用できます。 ぜひ一度試してみて下さい。 価格・200円/月、800円/年 -------------- 利用規約 https://alsunny.com/termsofuse/

Screenshots

Bunsuu calculator4 screens
ちょこ暗 算数4 screens

Verdict

The call

The clearest difference is in-app purchases: Bunsuu calculator at none against ちょこ暗 算数's 2. Bunsuu calculator also leads on iOS requirement (13.0 vs 17.0). ちょこ暗 算数's advantage is ads (none vs shown). On price, update cadence 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. ちょこ暗 算数 sells 2 in-app purchases, starting at $0.99 per month. Bunsuu calculator asks for nothing beyond the download.

UpkeepUpdate frequency

Bunsuu calculator ships an update every 2 months, ちょこ暗 算数 every 5 weeks. The most recent releases landed on September 19, 2026 and August 16, 2026 respectively.

Scorecard3 real differences · 3 level
Bunsuu calculator versus ちょこ暗 算数: the parameters behind the verdict, then further details
ParameterBunsuu calculatorちょこ暗 算数
PriceFreeFree
Update frequencyEvery 2 monthsEvery 5 weeks — better
AdsYesNo — better
In-app purchasesNo — betterYes
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.0 — better17.0
Further details — not scored
Size6 MB15 MB
Age rating4+4+
DeveloperKENTARO UMEAlways Sunny Ltd.

In-app purchases

None

Bunsuu calculator

No in-app purchases

2 purchases

ちょこ暗 算数

Subscriptions2
  • 月額プラン7 Days trial$0.991 Month
  • 年額プラン7 Days trial$4.991 Year

Questions

Is Bunsuu calculator free?
Bunsuu calculator is free to download, with no in-app purchases.
Is ちょこ暗 算数 free?
ちょこ暗 算数 is free to download, with in-app purchases available.
Do Bunsuu calculator or ちょこ暗 算数 have ads?
Bunsuu calculator shows ads; ちょこ暗 算数 does not.
Which is updated more often, Bunsuu calculator or ちょこ暗 算数?
Bunsuu calculator ships an update every 2 months, and ちょこ暗 算数 every 5 weeks. Most recently, Bunsuu calculator was updated on September 19, 2026 and ちょこ暗 算数 on August 16, 2026.

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