So simple, yet so useful
Response from developer
Thanks for your use and comments, and we’ll keep developing to support as many useful features as possible while keeping it simple.

Archived App
This is an archived listing of the app previously available on the App Store.This utility app combines two calculators into one, allowing for comparative calculations and complex operations. Results can be transferred between calculators, and it offers both standard and scientific modes.
1.0.5
September 25, 2023
- Optimized operation expression display UI.
Thanks for your use and comments, and we’ll keep developing to support as many useful features as possible while keeping it simple.
Dual-Calc is a utility app that combines two calculators into a single interface. It's designed for comparative calculations and complex mathematical operations where intermediate results need to be transferred.
You can transfer results between the two calculators in Dual-Calc in two ways: by clicking the switch button which automatically outputs the current result, or by directly clicking the calculator you wish to switch to, which does not automatically transfer results.
Yes, Dual-Calc provides a standard calculation mode in portrait view. When you rotate your device to landscape, it transforms into a scientific calculator.
You can copy a calculation result by long-pressing the result label. Additionally, Dual-Calc supports 3D Touch to quickly copy the latest calculation result.
Dual-Calc is available for iPhone, iPad, and iPod devices. It runs on iOS and supports devices with an age rating of 4+.
The latest version of Dual-Calc is 1.0.5, and it was last updated on September 25, 2023. This indicates a relatively recent update for the application.
Dual-Calc is a paid application and costs $1.99. There are no in-app purchases or advertisements associated with this utility.
No, Dual-Calc does not contain advertisements. It is a paid application that offers an ad-free experience for its users.