Archived App

This is an archived listing of the app previously available on the App Store.

Although the app is no longer distributed by Apple, you can still view its description, screenshots, version history, ratings, and metadata for reference.

Details

  • Released
  • Updated
  • June 14, 2011
  • September 5, 2018
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About

This app offers a comprehensive suite of calculation tools, including scientific, engineering, and financial functions. It also provides unit and currency conversion, date/time calculations, and advanced features like graphing and equation solving. The interface is intuitive and ad-free, designed for simplicity and power.

Scientific calculator functions
Unit and currency converter
Date and time calculations
Engineering and financial tools
Graphing and equation solver
RPN mode support
Constants library
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What's New in Calculator & Unit Converter

5.8

September 5, 2018

This app has been updated by Apple to display the Apple Watch app icon. What's new in version 5.8? - Fix Currency Converter bug - Update Periodic table - Fix some other minor bugs reported by users Thanks so much for using Calculator by PPCLINK. If you have any feedbacks, please contact us at office@ppclink.com. Thanks so much!

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User reviews

“Go-To” For everything!

I am a self-taught Astrophysicist, Astronomer, and Rocket engineer (simulated).
I searched a long time, through a ton of different software to make unit conversions or specific mathematic formulas, easier. I then found 12 in 1 Calculator.
Very intuitive design, and has such an incredibly versatile library.
I really enjoy reading my biorhythm statistics!

I recommend this if you’re anything like me, I love chemistry, geometry, math, mechanical engineering, (coding soon). I do it all, and 12 in 1 has it all!
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The best at conversion

Better than any I’ve tried. Includes virtually every option.

Crashes on 14.3

Was great now always crashes on launch

Bummed

I have used this calculator for years. Very disappointed that when I finally needed the mortgage calculator that I can’t print or share the amortization table. Reason for dropping my review.

Great calculator other than that.

Currency convert bug

The currency convert bug remains 😔

Developer apps

FAQ

What does this calculator app do?

This app is a powerful calculator that goes beyond basic arithmetic. It includes a scientific calculator with advanced functions like trigonometry and logarithms, as well as specialized tools for engineering, finance, and unit conversions. It also offers date and time calculations and a comprehensive constants library.

What are the key features of this calculator?

Key features include a full scientific calculator, currency and unit converters, date and time calculations, engineering and financial tools, graphing capabilities, an equation solver, and support for multiple calculation modes like RPN. It also boasts an intuitive interface with no ads and precision up to 31 digits.

Is this calculator app free to use?

Yes, the application is available for free. There are no advertisements within the app, and all its features are accessible without any cost to the user.

What kind of calculations can I perform with the scientific calculator?

The scientific calculator supports a wide range of functions including sin, cos, tan, inverse trigonometric functions, hyperbolic functions, logarithms, and constants like Pi. It also offers differential and evaluation functions, and supports complex numbers in string mode.

Who would benefit from using this app?

This app is ideal for students learning mathematics and science, engineers who need precise calculations and unit conversions, financial professionals for complex financial computations, and anyone who requires a versatile and advanced calculator for daily tasks or specific projects.