# Calculator & abacus training — Math Drill for calculator

> Math calculation drill app for abacus and calculator training. (iPhone/iPad app by kenji kiuchi.)

- Source: https://appshunter.io/ios/app/calculator-and-abacus-training/id1092519812 (this page in markdown: same URL + `.md`)
- Developer: [kenji kiuchi](https://appshunter.io/developer/553473005)
- Category: Education, Business
- Price: Free with in-app purchases
- Rating: 1.00/5 from 1 App Store ratings · 7 written reviews indexed
- Age rating: 4+
- Requires: iOS 12.0 · 20 MB
- Languages: American English, Japanese
- Released: 2016-03-28
- Data updated: 2026-08-19
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/calculator-and-abacus-training/id1092519812/reviews.md

## What is Calculator & abacus training?

This app is calculation drill for calculation training.
You can training that Abacus(soroban) & calculator & math

·Training mode
You can create the training that fits your level.
Purchase before you can create two. After the purchase will be able to create six.
Training time is pre-purchase is 50 times, after the purchase will be saved 200 times,
You can see their growth condition.
Training can be set in the range of below.
Kind: addition, the addition subtraction MIX, multiplication, division
Number of digits: up to 5 digits (9-digits after purchase)
Number of lines: up to 5 lines (15-digits after purchase)
Number of Questions: up to 50 questions

・Challenge mode
Level goes up and to clear the problem within the 100 s.
Since the problem is more and more difficult, let's challenge to your limits.

## Key features

- Abacus and calculator training
- Customizable training modes
- Addition, subtraction, multiplication, division
- Progress tracking
- Challenge mode with increasing difficulty
- Up to 5-digit calculations

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Remove Ad & All function release | $9.99 | one-time |


## Recent user reviews (7 of 7)

All indexed reviews: https://appshunter.io/ios/app/calculator-and-abacus-training/id1092519812/reviews.md

### 4/5 — iPad勢

*2024-02-23*

横画面に回転できるようにしていただきたいです＞＜
見ながらやるにはiPadを立てた方が見やすいので、横向きにしたいです！
よろしくお願いします！

### 5/5 — 電卓好きな人は楽しい！

*2022-01-06*

電卓やレジなどでうったりするのが好きな人はやっているうちに早くなるから楽しいと思います。

### 1/5 — Omg

*2020-05-17*

This is pure garbage!!!!

### 4/5 — 経理の実務に携わる者です

*2020-03-19*

おかげさまで電卓の計算スピードが飛躍的に上がりました。
自分の計算スピードが速いのか遅いのか、またどれくらい速い人がいるのか、興味があります。ランキング形式とするなど、客観的に自分のレベルが把握できるような仕組みをぜひご検討願います。

### 5/5 — いいね

*2018-06-17*

検定のために繰り返し練習してる商業高校に通っている1年生です

### 5/5 — 要望に答えていただきありがとうございました。

*2016-11-07*

今度は不具合？なのか答えがあるのか分かりませんが、割り算の問題をやっていたら、0÷0=という問題が出てきたんですけど…あっこれって分かってないだけのアレですかね(^^;？

### 5/5 — 楽しく使ってます!

*2016-09-17*

9桁の引き算の答えがあってるのに、間違い扱いになって先に進めませんでした。アプリの方が間違ってるとは思わないので、ずっと格闘してた(笑)

## Frequently asked questions about Calculator & abacus training

### Does Calculator & abacus training have ads?

Yes, Calculator & abacus training contains advertisements. This is common for free educational apps that offer in-app purchases for enhanced features.

### What math operations can I practice with Calculator & abacus training?

You can practice addition, subtraction, a mix of addition and subtraction, multiplication, and division. The app allows for customization of these operations within training modes.

### How does the training mode in Calculator & abacus training work?

The training mode allows you to create custom drills based on your skill level. You can adjust the type of operation, number of digits (up to 5 before purchase, 9 after), and number of questions (up to 50).

### What are the benefits of purchasing Calculator & abacus training?

Purchasing the app allows you to create more training sessions (six instead of two), save more training attempts (200 instead of 50), and access higher digit counts (up to 9 digits and 15 lines).

### Is Calculator & abacus training suitable for young children?

The app has an age rating of 4+, making it suitable for younger learners. It focuses on fundamental math skills through engaging drills and challenges.

### How does the Challenge mode in Calculator & abacus training work?

In Challenge mode, you aim to clear problems within a time limit of 100 seconds. The difficulty of the problems increases as you progress, pushing your limits.

### What devices support Calculator & abacus training?

Calculator & abacus training is supported on iPhone, iPad, and iPod devices. It is designed for iOS users looking to improve their math skills.

### How often is Calculator & abacus training updated?

The app was last updated on June 18, 2025, indicating recent development and potential for ongoing improvements and bug fixes.

## Version history (last 5 releases)

### 2.20 — 2025-06-18

bug fix.

### 2.19 — 2025-04-12

bug fix.

### 2.18 — 2025-02-25

bug fix.

### 2.17 — 2024-08-16

bug fix.

### 2.16 — 2021-07-27

bug fix.

## Apps similar to Calculator & abacus training

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [abacus shapes](https://appshunter.io/ios/app/abacus-shapes/id1370412661) | — | Free | Education |
| [Abacus Lesson](https://appshunter.io/ios/app/abacus-lesson/id1596053232) | 4.8 (93) | Free | Education |
| [Abacus Mental Math Training](https://appshunter.io/ios/app/abacus-mental-math-training/id6449295111) | 4.1 (29) | Free | Education |
| [Abacus Lesson -Multiplication-](https://appshunter.io/ios/app/abacus-lesson-multiplication/id1582635868) | 5.0 (14) | Free | Education |
| [Abacus Lesson - Division -](https://appshunter.io/ios/app/abacus-lesson-division/id1593317741) | 5.0 (8) | Free | Education |
| [Flash Mental Math - Simple](https://appshunter.io/ios/app/flash-mental-math-simple/id1547944841) | 4.7 (18) | Free | Education |

## More apps by kenji kiuchi

- [Calculator of cute cats](https://appshunter.io/ios/app/calculator-of-cute-cats/id969361739)
- [Music notes training for piano](https://appshunter.io/ios/app/music-notes-training-for-piano/id1081457060)
- [そろばんを1から覚える初心者のためのそろばん教室](https://appshunter.io/ios/app/1/id1095959894)
- [新幹線駅名クイズ -日本地図で覚える鉄道問題-](https://appshunter.io/ios/app/id1097402558)
- [Learn National Flags Quiz](https://appshunter.io/ios/app/learn-national-flags-quiz/id1133830526)

All apps by kenji kiuchi: https://appshunter.io/developer/553473005

---

*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 2026-08-19.*