Fully customizable calculator with basic and scientific buttons and history tape and memory functions.

・Design your own color theme!
・Dual-line display - shows the input and result at the same time
・History tape - saves every calculation, time and date stamped
・Memory buttons - shows its value on the display
・Percentage and backspace button
・Scientific functions
・6 layouts (3 portrait, 3 landscape)
・Multi-line input for really long equations
・Automatic scientific formatting
・Label any calculation in the history tape
・E-mail a calculation or the entire history tape
・VoiceOver accessibility
・iOS 9 Split View
・3D Touch


・Swipe down to see the history tape
・Tap & hold on the result to copy
・Tap & hold on the input to move the cursor, copy, paste, convert to E-notation


・Font Size
・Bold Font
・Color Theme
・Rounded Buttons
・Dark Mode
・Allowable Layouts
・Show Memory Buttons
・Replace ÷ Button With /
・Replace E Button With Hidden, EE, 00 or 000
・Show Thousands Separators
・Minimum Decimal Digits
・Maximum Decimal Digits
・Equals Repeat
・Left-Handed Mode

URL Scheme: calculatorproelite://

What’s New

Version 5.2.1

- Miscellaneous improvements

Ratings and Reviews

4.7 out of 5
1.6K Ratings

1.6K Ratings

The Guy Behind The Guy ,

Wow! Great Calculator

Wow! This is a great calculator! I don't know how people use the default Apple Calculator.

The big difference? This has a tape so you know you didn't mistype any number. It's like using a business calculator but works like a regular calculator.

I love the default color scheme and the tape on top of the calculator in portrait mode and the tape on the left in landscape mode and the rounding to 2 decimal places and the 00. The rotation from portrait to landscape mode is kind of neat.

I wish Apple would allow you to change the calculator that opens from Control Center.

Allrooj ,

Dual-line arrangement VERY useful

Compared to a financial, algebraic, RPN calculator I use every day, this is simpler. So far, I have not performed algebraic functions, only simple math.
It displays concurrently the entries which have produced the answer shown. Great for a visual check of the entries as you recall inputting them! Most helpful ;-)

TAD Auto ,

Tad auto

Revised review. In a previous review I blasted you for not giving me the option to use this Calculator without ads. My bad. You either fixed it, or I just figured out how to do it. Either way, Great Calculator!!! Thank you! 😊

In-App Purchases

Today Widget
Multiple History Tapes
Organize Your Calculations

App Privacy

The developer, Cider Software LLC, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

More By This Developer

You May Also Like