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Calculator Pro for iPad - Scientific Calculator

By Apalon Apps

This app is only available on the App Store for iOS devices.


Calculator Pro for iPad is designed for everyone looking for simplicity and functionality. You can enjoy using a standard calculator for basic operations or extend it into a scientific one for more complex calculations. Just tilt the device into landscape mode! 

Need to convert one unit to another? With the intuitive and beautifully designed converter you can easily switch between currencies, temperatures, length, speed and other numerous units.

• Two modes are available: do basic calculations in Portrait Mode or go advanced in Landscape Mode
• Degrees and Radians calculations
• History Bar: see your full calculation history directly on the screen
• Track Calculations History: view, save, delete selected equation or clear all
• Universal converter with 19 categories, including: Currency, Length, Time, Weight, Pressure, Temperature, Area, Data Size, Energy, Force, Frequency, Power, Acceleration, Density, Angle,Typography, Volume, Fuel Consumption and Speed
• Handy text search to find categories and units instantly
• Multitasking mode: bring in Calculator Pro while viewing web pages, photos, taking notes and more to get results instantly!
• Calculator Pro is now accessible via VoiceOver as well
• Pick the look from a bunch of skins to suit your own preference (Modern, Rose, Wood, Old, Doodle, Minimalistic, Zombie, Yellow, New Year)
• Memory buttons to help you out with complex calculations
• Accidentally input the wrong number? Just swipe with your finger to edit it!
• Copy and paste results and expressions directly into the current calculation
• Comment equation, e-mail calculation results and comments

Now you can do calculations on the go seamlessly!


What's New in Version 5.0

With the latest update we’ve made Calculator Pro even more intuitive yet just as handy as ever.

- % button is now available in Portrait mode
- Backspace button added
- 10.5-inch model iPad Pro support
- A few more improvements for better user experience

Thank you for your continued support and feedback! We're committed to making the app even better, so never lose the drive to share your impressions and feedback with us!

iPad Screenshots

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Customer Reviews

iOS 11 update? Multitasking not useful...

Hi. I love using calculator pro for iPad - scientific calculator, mostly because is the ad free version and it’s very similar to apple’s calculator. So with the iOS 11 update now multitasking is a little bit different. Now when we want to use 2 apps at the same time, all we have to do is slide from the bottom-up, so that the new dock appears and then hold the 2nd app we want to use, and drag it to the screen. The thing is that when we do that with your calculator app, the app does not recognize that is being used as a 2nd app on top of the main thing we are doing on the screen and it does not display the full calculator so it’s unuseful. I think you need to update it so that when we do that we get like a “mobile version” display of the calculator so that we can actually multitask with it while the calculator is on top of the screen in the shrink version. I don’t know if I’m explaining myself correctly but give it a try on your iPad with iOS 11. Open an app then drag your calculator from the dock to the screen and you’ll see what I mean. Hope that update comes soon because I like looking at safari to check my bank accounts and being able to use the calculator on top of that is very helpful. Thanks!

not worth it - stay away from this developer

purchased the pro version. worked fine until iOS11 was released. as stated in other reviews here, the bug is in multitasking mode. you cannot use the app in floating multitasking mode, something that is very problematic. most users will want that functioning properly. i reported this to the developer in september 2017, was told a fix was coming soon. i reported again in early october 2017. was told a fix coming soon. i am checking now, no bug fixed and the month is coming to an end. may i remind the developer that we paid a rather elevated amount for what amounts to a basic, simple app. the same amount buys apps that require lots, but lots of more work than this calculator app. the fact that developer cannot fix a simple bug that truly limits the use of this app is unacceptable. simply put, this is not a priority for the developer. it is just a way to extract some money from you. stay clear from this, aim for other apps that the same if not more. i am deleting mine, wish i could get my money back. the developer does not deserve it. and no, i usually do not write reviews.

Doesn't work right with iPad Pro 10.5

I have used this paid version for years on all my iPads, but now since I purchased the latest iPad Pro it no longer works. Landscape mode shows the standard and scientific mode, but portrait is off centered and still showing standard and scientific mode. I hope. This issue is fixed soon because this has been my go to calculator for years!

Thanks for the new update! My calculator is working perfectly on my iPad Pro 10.5 now. Thanks so much!!!

Calculator Pro for iPad - Scientific Calculator
View in iTunes
  • $2.99
  • Category: Utilities
  • Updated:
  • Version: 5.0
  • Size: 91.7 MB
  • Languages: English, Arabic, French, German, Italian, Japanese, Korean, Portuguese, Russian, Simplified Chinese, Spanish, Thai, Traditional Chinese, Turkish
  • Seller:

Compatibility: Requires iOS 7.0 or later. Compatible with iPad.

Customer Ratings

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