# AddCalc Freedom — Did you know? Adder calculator

> Dual-mode calculator with adder function, design customization, and input log management. (iPhone/iPad app by Shinichi Aokawa.)

- Source: https://appshunter.io/ios/app/addcalc-freedom/id562537493 (this page in markdown: same URL + `.md`)
- Developer: [Shinichi Aokawa](https://appshunter.io/developer/502862033)
- Category: Productivity, Utilities
- Price: Free with in-app purchases
- Rating: 3.50/5 from 4 App Store ratings · 17 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.6 · 6 MB
- Languages: Korean, German (Germany), Russian, European Spanish, American English, Italian, Japanese, Chinese (Simplified, China), Chinese (Traditional, Taiwan), French (France)
- Released: 2012-10-05
- Data updated: 2026-08-16
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/addcalc-freedom/id562537493/reviews.md

## What is AddCalc Freedom?

Do you know the calculator of optimal adder method for an accounting calculation? 
(with the calculation method change function) 
Try it on the iPhone and iPad you always carry around.

【Feature】 
- This can switch an "adder calculator" and "ordinary calculator” 
- Simple setting of the design of the calculator
- Sound effects
- Input log and copy
- Input log editing + recalculation function
- Voice reading of the input log (for iOS7)
- 14 Number of significant digits
- Always display "Grand Total"
- Always display "Memory"
- BackSpace function

Simple design that is emphasis in the adder calculation function

【How to use an adder calculator】 
”(10×10)+(5×5)-(6×5)=95”
10 [×] 10 [+=] 5 [×] 5 [+=] 6 [×] 5 [-] [GT]  
（10×10）Add（5×5）Add（6×5）Pull

Ver5.5.3 later
% Calculation example : 500 + (500 × 12%) = 560
500 [+=] 12 [%] [+=]
(Old : 500 [+=] [×] 12 [%] [+=])

【How to use an ordinary calculator】 
”(10×10)+(5×5)-(6×5)=95”
10 [×] 10 [=][M+] 5 [×] 5 [=][M+] 6 [×] 5 [=] [M-][MR]
Added to the Grand Total by "="
 
The continuous input will be "10 × 10 + 5 × 5 - 6 × 5 = 2595"

Ver5.5.3 later
% Calculation example : 500 + (500 × 12%) = 560
500 [+] 12 [%] [=]
(Old : 500 [+] [×] 12 [%] [=])

## Key features

- Dual calculator modes (adder and ordinary)
- Customizable calculator design
- Input log with editing and recalculation
- Voice reading of input log
- 14 significant digits
- Always display Grand Total and Memory
- Backspace function

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Remove ads | $1.99 | one-time |


## Recent user reviews (10 of 17)

All indexed reviews: https://appshunter.io/ios/app/addcalc-freedom/id562537493/reviews.md

### 2/5 — ダウンする

*2025-12-29*

✖️や🟰でアプリが落ちます

**Developer response:** アプリの再ダウンロードや広告解除のサブスク、および加算式や算式の切り替えなどと色々再テストを実施しましたが、その様な問題が再現されませんでした。

また×や=で特別な処理も行っておりませんので、通信の良い環境でアプリの再ダウンロードをお試し頂けると幸いです。

### 4/5 — 開けません

*2022-08-21*

電卓は加算機方式が慣れれば一番使いやすいので重宝してました。ですが、不具合が発生したみたいで開けません。

**Developer response:** ご利用ありがとうございます。
iOS15.6.1に対応した修正バージョン15.5.1にアップデートをよろしくお願い致します。

### 4/5 — 小数点計算

*2018-12-22*

表示だけの問題ですが0.2+0.4+0.6は、1.2と表示することは可能でしょうか
CASIO JS-25 に慣れているだけかもしれませんが。

**Developer response:** ご連絡ありがとうございます。問題を確認し修正をして、Ver11.3.4のアップデート申請を行いましたのでご報告いたします。

### 1/5 — 起動しません

*2018-11-05*

よく使用していましたが急に使えなくなりました
残念です

**Developer response:** 緊急対応後はいかかでしょうか？

### 2/5 — iOS12で起動しなくなりました。

*2018-10-30*

iOS12のiPad mini2で起動しなくなりました。
便利に使っていたのに残念です。
削除しました。
もちろん再インストールも試し、端末の再起動もしましたがダメでした。

**Developer response:** 緊急対応後はいかかでしょうか？

### 5/5 — 加算式計算機をお探しの方に

*2017-04-01*

経理業務で大量の伝票の足し算（と引き算）を行う方などに加算式電卓がオススメです。慣れると通常の入力より絶対便利。
通常入力との切替やデザインのカスタマイズも簡単です。
カシオのJS25が廃番になって、今や代替機はコレしかありません。とても助かってます。
（計算例）
10,000+3,000+3,000+3,000+3,000-3,000=　という入力の場合、加算機では「10,000+3,000++++-」と入力すれば良い。（最後の置き数を4回足すなら+を4回押す。）これは桁数の多い集計計算で威力を発揮する。仮に足してやっぱりやめても+-だけで可能。

**Developer response:** コロニー住民さんコメント更新ありがとうございます。

### 2/5 — 구매내역삭제요망

*2017-03-11*

구매내역삭제부탁합니다

### 5/5 — 入力音がクリアで美しいし

*2016-10-25*

まだ使いこなせてないが、入力音がクリアで美しい。
デザインが卓上電卓に近い感じで使いやすい。

**Developer response:** ありがとうございます。
「+=」ボタンを押し設定画面で「普通（算式）」を選択すると普通の計算機と同じ使い勝手になり「＝」を押すとGT（グランドトータル）に加算されるように変更する事も可能です。
【加算器方式】とは ぞくに後足し計算機とも言われ「(100×10)-(50×2)=900」感覚的には0に100×10=1000足す、50×2=100を引くと画面表示は最後の「50×2=100」となり、GTは「1000-100=900」になり、「+=」と「−」で総合計に加減算される仕組みになっています。

### 1/5 — 広告

*2015-12-14*

広告の出方が悪過ぎる
すぐに削除しました

### 5/5 — 履歴が残せて便利

*2015-10-14*

デザインが良いです。あと履歴も残せるから気に入ってます

## Frequently asked questions about AddCalc Freedom

### What is the adder calculator function in AddCalc Freedom?

The adder calculator in AddCalc Freedom is designed for accounting calculations, allowing for sequential addition and subtraction of results from multiple operations. For example, it can compute '(10x10)+(5x5)-(6x5)' by inputting operations and using the '+=' button.

### Can I switch between different calculator types in AddCalc Freedom?

Yes, AddCalc Freedom allows you to switch between an 'adder calculator' mode, optimized for accounting, and an 'ordinary calculator' mode for standard calculations. This flexibility caters to various user needs.

### Does AddCalc Freedom offer any customization options?

Yes, AddCalc Freedom provides simple settings to customize the design of the calculator. It also includes sound effects for a more interactive user experience.

### How does AddCalc Freedom handle input logs?

AddCalc Freedom features an input log that can be copied and edited. It also includes a recalculation function for the log and voice reading of the input log on iOS 7 and later.

### What are the precision and display features of AddCalc Freedom?

The calculator supports 14 significant digits for high precision. It also features an 'Always display "Grand Total"' and 'Always display "Memory"' function for easy access to key calculation summaries.

### Is AddCalc Freedom available on multiple devices?

Yes, AddCalc Freedom is available for iPhone and iPad, making it convenient to use on the Apple devices you carry around.

### How often is AddCalc Freedom updated?

The latest version of AddCalc Freedom is 19.4, and it was last updated on March 11, 2026. This indicates a history of regular updates and improvements.

### What is the user sentiment for AddCalc Freedom based on its rating?

AddCalc Freedom has a rating of 3.5 stars from 4 ratings. While this is a small sample size, it suggests a generally positive but not overwhelmingly enthusiastic user reception.

## Version history (last 5 releases)

### 19.9 — 2026-08-15

Thank you for using “AddCalc”.
We have fixed bugs and improved performance so that you can use it more comfortably.

### 19.8 — 2026-07-13

Thank you for using “AddCalc”.
We have fixed bugs and improved performance so that you can use it more comfortably.

### 19.7 — 2026-06-10

Thank you for using “AddCalc”.
We have fixed bugs and improved performance so that you can use it more comfortably.

### 19.6 — 2026-05-15

Thank you for using “AddCalc”.
We have fixed bugs and improved performance so that you can use it more comfortably.

### 19.5 — 2026-05-03

Thank you for using “AddCalc”.
We have fixed bugs and improved performance so that you can use it more comfortably.

## Apps similar to AddCalc Freedom

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [PractiCalculator](https://appshunter.io/ios/app/practicalculator/id1137546240) | — | Free | Productivity |
| [Platin HR](https://appshunter.io/ios/app/platin-hr/id1664091024) | — | Free | Productivity |
| [School Calculator Pro](https://appshunter.io/ios/app/school-calculator-pro/id1614316164) | — | $1.99 | Productivity |
| [Nixie Calculator](https://appshunter.io/ios/app/nixie-calculator/id1489019109) | 4.8 (13) | Free | Productivity |
| [PractiCalc2](https://appshunter.io/ios/app/practicalc2/id1502884244) | — | $1.99 | Productivity |
| [KumamonCalc](https://appshunter.io/ios/app/kumamoncalc/id830364492) | 5.0 (1) | Free | Productivity |

## More apps by Shinichi Aokawa

- [AddCalc PRO](https://appshunter.io/ios/app/addcalc-pro/id502862030)
- [MyHoliday - 私の休日](https://appshunter.io/ios/app/myholiday/id638730082)
- [VoiceClock - Talking](https://appshunter.io/ios/app/voiceclock-talking/id660371546)
- [AnyCal PRO](https://appshunter.io/ios/app/anycal-pro/id725194896)
- [AnyCal](https://appshunter.io/ios/app/anycal/id725215673)

All apps by Shinichi Aokawa: https://appshunter.io/developer/502862033

---

*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 2026-08-16.*