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Calculator HD Pro

By Cider Software LLC

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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 2.9

- Widescreen buttons in landscape mode for iPhone
- Fixes bug with undo causing crash after using +/-
- Fixes wrong color in title bar of history tape


iPhone Screenshot 1
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iPad Screenshot 1
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Customer Reviews

Great Little Calculator

The stock calculator on my iPhone did not come with the ability to review the numbers I was entering or "X" out the incorrect number that was entered. Although for personal use (I am retired) and not for business, I still wanted a calculator that offered these little tweeks. After searching through numerous calculator apps, I decided to give this one a try. I noticed there was just a few reviews, but everyone was giving it 5 stars. I figured this little calculator might just be a diamond in the rough plus it was free. So I decided I'd give it a try and boy was I right on! I couldn't be happier. Easy to use and read and I like the color schemes, too. Just a nice little touch. Frankly, I have no use for the scientific part of it, but if I ever need it someday (snicker) I'll know it's there. I was so happy with it that I purchased the ad-free version. It's just what the dr ordered. Goes to show you that just because it doesn't have a gazillion reviews yet doesn't mean it's bad. This one is a keeper. I feel sure if people would give it a chance there would be more than just a few reviews and I know each review will be a 5 star winner. Thanks for developing this app.

Good calculator

I just loaded this and really like it.
It has a running tape area in landscape which keeps track of your calculations so not only can you go back and look/see what you've done, but it lets you recall the calculation. Really handy.
Has a great looking interface which is easy to use and a scientific mode which I'll never use.
If you need more than the basic app apple provides as a calculator get this!


I bought it because I love it and got tired of Google asking me to sign up when I already am!
I like how it keeps a running tally and let's you know your total as you go; as well as running a "tape" to check the numbers I put in and make sure I got the right ones.
It's very helpful in having a back button and a clear button.
I really like it.

Calculator HD Pro
View In iTunes
This app is designed for both iPhone and iPad
  • $2.99
  • Category: Utilities
  • Updated:
  • Version: 2.9
  • Size: 21.1 MB
  • Languages: English, Bokmål, Norwegian, Catalan, Czech, Danish, Dutch, Finnish, French, German, Greek, Hebrew, Hungarian, Indonesian, Italian, Japanese, Korean, Polish, Portuguese, Romanian, Russian, Simplified Chinese, Slovak, Spanish, Swedish, Traditional Chinese, Turkish
  • Seller:

Compatibility: Requires iOS 7.0 or later. Compatible with iPhone, iPad, and iPod touch. This app is optimized for iPhone 5.

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