# Twin Calculator

> Dual-result calculator with advanced memory and history features. (iPhone/iPad app by KIXX.)

- Source: https://appshunter.io/ios/app/twin-calculator/id614113289 (this page in markdown: same URL + `.md`)
- Developer: [KIXX](https://appshunter.io/developer/591582675)
- Category: Productivity, Utilities
- Price: Free with in-app purchases
- Rating: 5.00/5 from 1 App Store ratings
- Age rating: 4+
- Requires: iOS 7.0 · 8 MB
- Languages: American English, French (France), German (Germany), Italian, Japanese, Korean
- Released: 2013-03-25
- Data updated: 2026-06-24
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/twin-calculator/id614113289/reviews.md

## What is Twin Calculator?

This calculator can display two results (main and sub).
The sub value displayed at the top left can be used in the main calculation.
You can switch easily between main and sub.

Please forget about the old memory function.
This is an evolved form of the memory function.

The two values can be easily compared.
There is no more need to write them down.

Two special keys.
1. [A/B] key : Switch between main and sub
2. [A],[B] key : Use sub value

The calculation history can be displayed in the blank space, and it can also be copied to the clipboard (long press on the history field).
The button and background colors are also customizable.

Please use it for simple calculations in every day life.


[Twin Calculator]-----------------------

## Key features

- Dual result display (main and sub)
- Sub value integration into main calculation
- Easy switching between main and sub values
- Advanced memory function
- Calculation history display and copy
- Customizable button and background colors

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Twin Calculator - Ad Free | $0.99 | one-time |



## Frequently asked questions about Twin Calculator

### What makes Twin Calculator different from a standard calculator?

Twin Calculator displays two results simultaneously, a main and a sub value. This allows for easy comparison and the integration of the sub value into the main calculation, offering an evolved memory function.

### How does the memory function in Twin Calculator work?

Twin Calculator's memory function is an advanced system where two values can be stored and easily switched between. The sub value can be directly used in the main calculation, eliminating the need for manual note-taking.

### Can I customize the appearance of Twin Calculator?

Yes, Twin Calculator allows you to customize the button and background colors to your preference. This personalization helps make the app more visually appealing and user-friendly.

### Is Twin Calculator available on Android devices?

Based on the provided data, Twin Calculator is currently supported on iPhone and iPod. Information regarding Android compatibility is not available.

### How often is Twin Calculator updated?

The latest version of Twin Calculator is 1.0.6, and it was last updated on October 17, 2015. This indicates infrequent updates in recent years.

### What is the age rating for Twin Calculator?

Twin Calculator has an age rating of 4+. This means it is considered suitable for children aged 4 and above, with no mature content.

### Can I copy my calculation history from Twin Calculator?

Yes, the calculation history displayed in Twin Calculator can be copied to your clipboard. You can do this by long-pressing on the history field.

### Does Twin Calculator have ads?

No, Twin Calculator does not contain advertisements. The app is free to use and offers in-app purchases.

## Version history (last 5 releases)

### 1.0.6 — 2015-10-17

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

(v1.0.6)
- Supported iOS 9.

### 1.0.5 — 2014-10-04

(v1.0.5)
- Supported iOS 8.

### 1.0.4 — 2014-03-04

(v1.0.4)
- Added Locale-Sensitive format.
- Localization added : France, Germany, Italy, and South Korea.

### 1.0.3 — 2013-12-01

(v1.0.3)
- Supported iOS 7.

### 1.0.2 — 2013-07-16

(v1.0.2)
- LCD background color is also customizable.

## More apps by KIXX

- [Fastest King](https://appshunter.io/ios/app/fastest-king/id597401958)
- [Hit Arrow](https://appshunter.io/ios/app/hit-arrow/id599221522)
- [パチスロ小役カウンターＺｉ](https://appshunter.io/ios/app/id798031820)

All apps by KIXX: https://appshunter.io/developer/591582675

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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 2026-06-24.*