# Dual-Calc Lite — Combine two calculators in one

> Dual calculator app with shared input and separate result displays. (iPhone/iPad app by Jing Li.)

- Source: https://appshunter.io/ios/app/dual-calc-lite/id6443996409 (this page in markdown: same URL + `.md`)
- Developer: [Jing Li](https://appshunter.io/developer/982234327)
- Category: Utilities
- Price: Free
- Rating: 5.00/5 from 2 App Store ratings
- Age rating: 4+
- Requires: iOS 11.0 · 13 MB
- Languages: English, Japanese, Korean, Chinese, Chinese
- Released: 2023-01-09
- Data updated: 2026-06-10
- Monetization: ad-supported
- User reviews in markdown: https://appshunter.io/ios/app/dual-calc-lite/id6443996409/reviews.md

## What is Dual?

Dual-Calc Lite is an efficient, simple and easy-to-use calculator app that combines two calculators into one.
The two calculators are sharing one input keyboard and the calculation process and results are displayed in two separate windows.

This calculator is especially suitable for the following use scenarios:
1. Comparative calculation (for example, when shopping online, we want to calculate and compare the unit price of the same commodity in different stores);
2. A complex mathematical operation in which some expressions in the middle need to be operated first. Through this app, one calculator can calculate the main formula, and the other one can calculate the subformula. The result of the subformula calculation can be directly output to the main formula calculator.

Meanwhile, we also provide a no ads and more powerful paid version (Dual-Calc), the price is quite cheap, can be found in our supplier App list on this page. Welcome to download and use!

【 Features 】
1. Results can be exported from one calculator to another.
2. For the convenience of users, we provide two ways to switch calculators. The only difference between the two ways is whether the results of the previous calculator are automatically brought to the next one during the switching process:
    a. Click on the ⇅(⇋) button, will switch calculator, at the same time the result of the current calculator will be output to the other one.
    b. You can switch calculators by clicking the top two calculators directly, but the calculation results will not be automatically output at this time.
3. Long press the calculation result label to copy it to the system paste board.
4. Support 3D Touch to copy the latest calculation result.
5. Provide standard calculation mode under portrait and rotate the screen to landscape it will become a scientific calculator.

Looking forward to your feedback and suggestions. If you have any questions, please contact us by email.
Email: superkidstudio@163.com

## Key features

- Two calculators in one
- Shared input keyboard
- Separate result windows
- Export results between calculators
- Switch calculators with or without auto-transfer
- Copy results to clipboard
- Portrait standard, landscape scientific calculator


## Frequently asked questions about Dual

### Does Dual-Calc Lite have ads?

Yes, Dual-Calc Lite contains advertisements. The developer also offers a paid version without ads.

### What is the price of Dual-Calc Lite?

Dual-Calc Lite is available for free. A paid version, Dual-Calc, is also offered at a low price.

### How does Dual-Calc Lite help with comparative shopping?

The app allows you to run two calculations simultaneously, making it easy to compare unit prices or costs from different sources side-by-side.

### Can I transfer results between the two calculators in Dual-Calc Lite?

Yes, you can export results from one calculator to the other. There are two switching methods: one automatically transfers the result, and the other requires manual selection.

### What devices support Dual-Calc Lite?

Dual-Calc Lite is supported on iPhone, iPad, and iPod devices.

### What is the age rating for Dual-Calc Lite?

Dual-Calc Lite has an age rating of 4+, making it suitable for a wide range of users.

### How often is Dual-Calc Lite updated?

The latest version, 1.0.4, was released on March 22, 2023. Updates are provided by the developer to improve functionality and reliability.

### Can Dual-Calc Lite function as a scientific calculator?

Yes, Dual-Calc Lite offers a standard calculator mode in portrait orientation and automatically switches to a scientific calculator when the device is rotated to landscape.

## Version history (last 3 releases)

### 1.0.4 — 2023-03-22

- Bug fixed.

### 1.0.1 — 2023-01-12

- Added vibration and sound feedback when pressing buttons.

### 1.0.0 — 2023-01-09

No release notes.

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## More apps by Jing Li

- [Dual-Calc](https://appshunter.io/ios/app/dual-calc/id6443838197)
- [VisuDSA](https://appshunter.io/ios/app/visudsa/id6444121522)

All apps by Jing Li: https://appshunter.io/developer/982234327

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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 2026-06-10.*