# Bunsuu calculator

> Bunsuu calculator (iPhone/iPad app by KENTARO UME.)

- Source: https://appshunter.io/ios/app/bunsuu-calculator/id1525584934 (this page in markdown: same URL + `.md`)
- Developer: [KENTARO UME](https://appshunter.io/developer/764546905)
- Category: Education, Utilities
- Price: Free
- Age rating: 4+
- Requires: iOS 13.0 · 6 MB
- Languages: English, Japanese
- Released: 2020-07-31
- Data updated: 2026-06-04
- User reviews in markdown: https://appshunter.io/ios/app/bunsuu-calculator/id1525584934/reviews.md

## What is Bunsuu calculator?

[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).


## Version history (last 5 releases)

### 1.09 — 2023-09-21

-iOS17.0 supported.
-Minor bug fixes.

### 1.08 — 2023-04-16

-iOS16.4.1 supported.

### 1.07 — 2022-05-18

-iOS15.5 supported.

### 1.06 — 2021-09-29

-iOS15 supported.
-Minor bug fixes.

### 1.05 — 2021-06-12

-Modified to show a guide on how to enter fractions only when starting for the first time.
-iOS14.6 supported.

## Apps similar to Bunsuu calculator

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [ChallengeAddition&Subtraction](https://appshunter.io/ios/app/challengeaddition-and-subtraction/id6446822143) | — | Free | Education |
| [Dev Calc Pro (Hex Dec Oct Bin)](https://appshunter.io/ios/app/dev-calc-pro-hex-dec-oct-bin/id638232609) | 3.5 (2) | $2.99 | Education |
| [100 Square Calc: Add & Mul](https://appshunter.io/ios/app/100-square-calc-add-and-mul/id1598691332) | — | Free | Education |
| [Mathematical Playground](https://appshunter.io/ios/app/mathematical-playground/id1180400849) | — | $1.99 | Education |
| [Stats tester plus](https://appshunter.io/ios/app/stats-tester-plus/id1604531508) | 5.0 (1) | $3.99 | Education |
| [Heron's Formula Calculator](https://appshunter.io/ios/app/herons-formula-calculator/id1634727150) | — | $2.99 | Education |

## More apps by KENTARO UME

- [Ninja Countdown Charm FREE](https://appshunter.io/ios/app/ninja-countdown-charm-free/id950129204)
- [exam_calculate](https://appshunter.io/ios/app/exam-calculate/id1265876274)
- [SPACEJIN - retro shooting game](https://appshunter.io/ios/app/spacejin-retro-shooting-game/id1360868913)

All apps by KENTARO UME: https://appshunter.io/developer/764546905

---

*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-04.*