Opening the iTunes Store.If iTunes doesn't open, click the iTunes application icon in your Dock or on your Windows desktop.Progress Indicator
Opening the iBooks Store.If iBooks doesn't open, click the iBooks app in your Dock.Progress Indicator

iTunes is the world's easiest way to organize and add to your digital media collection.

We are unable to find iTunes on your computer. To buy and download Calculator HD Pro by Cider Software LLC, get iTunes now.

Already have iTunes? Click I Have iTunes to open it now.

I Have iTunes Free Download
iTunes for Mac + PC

Calculator HD Pro

By Cider Software LLC

Open iTunes to buy and download apps.


Calculator HD Pro features a dual-line display that updates live as you type, so you can keep track of both the input and result at the same time. Swipe right on the keyboard for scientific functions, swipe down for a history tape. With 4 gorgeous themes, this is THE BEST calculator for the iPad, iPhone, and iPod!

Featured on the App Store - "What's Hot"


・Swipe down to see the history tape
・Swipe right on the Keyboard for Scientific functions.
・Swipe left on the Input to Backspace, swipe right to Clear
・Tap and hold on the Input to change the cursor position, copy and paste for easy editing of formulas, or convert to scientific E-notation

Calculator Features

・Dual-line display lets you keep track of the Input and Result at the same time.
・Backspace to delete one number at a time, Clear to delete entire input.
・Switch between basic & scientific keys or rotate to landscape for both at once.
・Memory content is displayed next to the Input to make it easy to keep track.
・Automatic scientific formatting of extremely large or small numbers.
・Automatic formatting of the decimal point as a comma for international users.
・Accurate and powerful calculator engine.

Calculator Options

・Choose between 4 gorgeous themes (Candy, MacBook Pro, Sci-Fi, and Snow).
・Choose between obelus (÷) or slash (/) for the division sign.
・Change max number of decimal digits displayed (0-12).
・Enable/disable button click sound.
・Show/hide Memory buttons M+, M-, MR, MS, MC.

Tape Features

・Every time you press =, the calculation is automatically saved to the tape.
・Each calculation is time and date stamped to keep a history of what you calculated.
・Add a custom label to any calculation in the tape view.
・E-mail an individual calculation or the entire tape view.

URL scheme: calculatorhdpro://

Full instructions are available in the app in Settings > Help > Detailed Help.

What's New in Version 2.10

- Adds Option In Settings For: "Left-Handed Mode" (History Tape and Scientific Keypad are moved to left side of screen and Basic / Scientific buttons are swapped).

- Adds Option In Settings For: "Larger Buttons" (iPad only - reduces border around calculator).

- Adds Option to "Input Result At Cursor" from History Tape.

- Status bar is now hidden in Landscape Mode (iPhone only - allows for larger buttons).


iPhone Screenshot 1
iPhone Screenshot 2
iPhone Screenshot 3
iPhone Screenshot 4
iPhone Screenshot 5
iPad Screenshot 1
iPad Screenshot 2
iPad Screenshot 3
iPad Screenshot 4
iPad Screenshot 5

Customer Reviews


Finally. A calculator that has all the features I have been looking for. It displays your entire calculation while displaying a running total above. Makes for easy review of the entire calculation if you suspect an input error. If you do find an error, you can use the delete button to go back and correct it without having to start all over again. Likewise, it keeps a history of your calculations, so you can pull them up without having to input them all over again. The colors are nice; they don't jar like colors on some other calculators. Also has the scientific function. I love this calculator and recommend it without hesitation. I will never look for another one.

Simple and Sweet!!

This is just what I was looking for...
It has percentage % which comes in handy with sales tax! It even has both Basic and a Scientific calculators, and it is Beautiful in too! The $ cost is worth having no commercials! And it has the option to have a paper trail. Gives you each item and the total that you can print out! And a correction key to go back and make corrections without starting over! Truly wonderful!
Thank you!

Pretty good

iPads don't come with a calculator for some reason so you have to use an app. This was the one I settled on after trying a few others. Wasn't easy since there are about 900 calculators in the App Store. To remove ads cost $3 which was a little expensive. The developer uses ads as an annoyance that can't be ignored without paying a ransom. Crappy business model IMO. Other than that it's a decent calculator albeit expensive.

Calculator HD Pro
View In iTunes
This app is designed for both iPhone and iPad
  • $2.99
  • Category: Utilities
  • Updated:
  • Version: 2.10
  • Size: 21.4 MB
  • Languages: English, French
  • Seller:

Compatibility: Requires iOS 7.1 or later. Compatible with iPhone, iPad, and iPod touch.

Customer Ratings

Current Version:
All Versions: