# Calculator Dojo Lv99 — Calculator training game

> A calculator training game with 99 levels and multiple game modes. (iPhone/iPad app by Keaton.com.)

- Source: https://appshunter.io/ios/app/calculator-dojo-lv99/id845378903 (this page in markdown: same URL + `.md`)
- Developer: [Keaton.com](https://appshunter.io/developer/464191934)
- Category: Education, Games, Action
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 7.0 · 45 MB
- Languages: American English, Japanese
- Released: 2014-07-24
- Data updated: 2026-08-14
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/calculator-dojo-lv99/id845378903/reviews.md

## What is Calculator Dojo Lv99?

Conquer 99 levels! A quick calculation training game played by using a calculator is finally on the store.
Solve addition, subtraction, and more complicated operations using memory functions. Can you complete all the stages and be a calculation master?

Solve problems one after another using 3 different calculators!
Compete against time or use assist items when you are having a tough time. It offers you not only calculation training but also challenging gameplay!

MASTER USING A CALCULATOR:
Can you quickly solve the following problem by using a calculator: (129 + 94) x (65 - 39)?  
Do you know how to use keys such as [M+] and [M-] on a calculator?

In everyday life, we use a calculator but most of us do not make full use of it.
Playing this app will improve your calculation skills and you will be able to solve complex calculations at once!

EXAM MODE:
You'll pass the exam if you finish the game within the time limit or exceed the qualifying score.
There are 99 levels and the further you go the more difficult the problems will be. Pass all the stages!
Stuck? Use an assist item and secure your victory!

SCORE CHALLENGE MODE:
Score as high as possible without making any mistakes!

TIME TRIAL MODE:
Compete with the clock to get the fastest time to win the game. Break the world record!

TRAINING MODE:
It offers intensive trainings such as "addition", "abacus", and "calculation with memory function".

FOR 5-99 YEARS OLD:
• Detailed instructions on how to use the memory functions are included. So no worries if you don't know the operation at all.
• It also contains a simple calculator for kids that is suitable for the elementary school level calculation such as typing numbers, addition, or subtraction.

ABOUT ADS & ADD-ON:
• The free version contains ads (purchasing an add-on removes the ads).
• You can play the entire app for free, but purchasing medals give you an advantage for finishing the game. You will also obtain medals by satisfying a certain condition within the game. 
• Please keep in mind that all the medals are lost when the app was deleted from your device. Moreover, medals cannot be transferred to other users or cannot be transferred to other devices.

PRIVACY POLICY:
This app includes;
• advertisement
• add-ons (In-App Purchases)
• a function to post on the SNSs
  * No automatic post without operation.
• links to Keaton.com apps and the official site
• score data collection for displaying rankings
  * By signing in the Game Center, play data such as the score will be automatically sent to the server and your account name and score will be shown on the leaderboard.

## Key features

- 99 challenging levels
- Addition, subtraction, and memory functions
- Timed modes (Score Challenge, Time Trial)
- Assist items for help
- Detailed calculator usage instructions
- Exam Mode with score/time limits
- Training Mode for specific skills

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |
| 5 Medals Pack | $0.99 | one-time |
| 15 Medals Pack | $1.99 | one-time |
| 30 Medals Pack | $2.99 | one-time |


## Recent user reviews (10 of 16)

All indexed reviews: https://appshunter.io/ios/app/calculator-dojo-lv99/id845378903/reviews.md

### 3/5 — まぁまぁいいけど

*2019-07-22*

「M+」と「MR」の配置が逆で間違うからできるならば配置を見直してほしい

### 2/5 — Bluetooth電卓&テンキー未対応

*2019-05-29*

Apple製品対応のBluetooth電卓、Bluetoothテンキーで練習できるかと思いダウンロードしてみたがどちらも反応せず、画面を直接押さないとだめらしい、今後対応して欲しいところ

### 1/5 — いや

*2019-05-11*

答え合ってて計算方法が違うのかと思い他の方法でもやりましたがXで進めません。
もう他の計算方法ないのですが。。

### 5/5 — たのしい

*2017-02-13*

単純作業が好きな私はハマってしまいました！最初は操作に苦戦しましたが慣れたら楽しいです。暇つぶしにオススメ

### 1/5 — 最悪

*2017-01-14*

最終的に正しい答えにたどり着いても計算の順序が違うからか×にされました。
電卓は正しい答えを出すための道具なのでたとえ順番が違うといえど、答えがあっているなら○にしてほしいです

### 5/5 — 検定用に

*2016-10-01*

電卓を持ってはいるもののMやMCやらはいったいなんのためにあるやら....状態な私でしたが初めて間も無くたどたどしくはありますが使えるようになりました。
便利なものですねメモリー機能って.....。
強いていうなら解説？というかどうしても解けない問題はパスにして後で答えを見せてもらえたらもっと良かったです笑笑

### 2/5 — 遊び方が直感的に分からなかったです

*2015-07-19*

作成お疲れ様です。
ダウンロード後の3分での感想です。
数字を入力させて＝を押させて合ってたら◯間違ってたら×で良かったのではないかと感じました。現状は、＝を押した後もう一度＝（↑）を押さなければならないのがわかりづらかったです。
面白そう、と思ってやり始めましたが、このUXで離脱しました。
この辺り、トレーニングモードがもう少し丁寧か、動画での解説などがあると良いかも？
ご参考まで。

### 1/5 — くそアプリ

*2015-07-05*

使えません。
あたりまえですが、オモチャです。
ゲームとしても未熟。ユーザーに何をさせたいのか謎なアプリ。

### 2/5 — んー…。

*2014-09-08*

ゲーム自体は楽しいけど、広告が邪魔。時間隠すし、メニュー画面に戻るボタン隠す。ちょっとイライラ

### 1/5 — 使えない

*2014-08-23*

使えないから腹立つ

## Frequently asked questions about Calculator Dojo Lv99

### What is Calculator Dojo Lv99?

Calculator Dojo Lv99 is a game designed to improve your calculation skills by presenting you with 99 levels of math problems. It teaches you how to effectively use a calculator for various operations.

### How does Calculator Dojo Lv99 teach calculator usage?

The game includes detailed instructions on using memory functions like [M+] and [M-]. It also offers a simple calculator mode suitable for elementary school level calculations.

### What are the different game modes in Calculator Dojo Lv99?

Calculator Dojo Lv99 features Exam Mode, Score Challenge Mode, Time Trial Mode, and Training Mode. Each mode offers a unique way to test and improve your calculation abilities.

### Is Calculator Dojo Lv99 suitable for young children?

Yes, the app is rated for ages 4+ and includes a simple calculator for kids. It provides detailed instructions, making it accessible even for those unfamiliar with calculator operations.

### Can I play Calculator Dojo Lv99 offline?

The provided data does not specify offline play capabilities. However, features like score data collection for leaderboards suggest an internet connection may be required for some functionalities.

### What is the pricing for Calculator Dojo Lv99?

Calculator Dojo Lv99 is free to download and play. It offers in-app purchases for medals that provide advantages in finishing the game.

### How often is Calculator Dojo Lv99 updated?

The app was last updated on September 12, 2017, to version 1.2.1. This indicates a less frequent update schedule in recent years.

### Does Calculator Dojo Lv99 have ads?

The free version of Calculator Dojo Lv99 contains advertisements. Purchasing an add-on is available to remove these ads.

## Version history (last 4 releases)

### 1.2.1 — 2017-09-12

This app has been updated by Apple to display the Apple Watch app icon.

• Improve compatibility for iOS
• Optimize for 4.7/5.5 inches screen size of iPhone
• Energy recovery time reduced to 10 minutes
• Fix add-on purchase issue
• Minor bug fixes and small improvements
* Due to technical reasons, this update requires iOS 7 or later

### 1.1.1 — 2015-01-27

- Free play to Score Challenge/Time Trial
- Improve compatibility for iOS 8
- Enable to turn notifications on/off in Option screen
- Minor bug fixes and small improvements

### 1.0.2 — 2014-08-02

• Update sound system 
• Minor bug fixes

### 1.0.1 — 2014-07-21

No release notes.

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All apps by Keaton.com: https://appshunter.io/developer/464191934

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*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 2026-08-14.*