iPad Screenshots


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!

For complete access to all Calculator Pro+ features, you will need to allow access to the following:
*Location data - this will enable automatic currency selection in the Converter.

Privacy Policy: http://apalon.com/privacy_policy.html
EULA: http://www.apalon.com/terms_of_use.html
AdChoices: http://www.apalon.com/privacy_policy.html#4

What’s New

Version 5.2

- Performance and stability improvements for flawless work on iOS 13.

Thank you for your continued support and comments submitted by email! Don't hesitate to share your impressions and feedback with us via support@apalon.com

Ratings and Reviews

4.7 out of 5
14.1K Ratings

14.1K Ratings

stefanieRibarra ,

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!

Developer Response ,

You can now download the latest update of the application which fully supports the Slide Over mode. We hope you enjoy the app and please let us know in the comments if you experience other issues with the app!

Dbsn12588 ,

Great app!

Love this app from top to bottom. I was also impressed by the customer service given to me a few weeks ago. I had contacted them about an issue that came about with the new iOS. They said they were working on a fix. A week passed and I received a follow-up email letting me know that my issue was fixed in their new update. Only thing I would add is having more options when it comes to customization of the calculator, having additional skins would be nice. Highly recommend this app to anyone who is looking for a well made, professional calculator.

Keep up the good work guys!

Developer Response ,

Thank you for your feedback. We appreciate your comment and will consider it while working on future versions of the app. If you have any further suggestions or ideas - please let us know at support@apalon.com. Thank you in advance!

refunds ,

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.

Developer Response ,

You can now download the latest update of the application which fully supports the Slide Over mode. We hope you enjoy the app and please let us know in the comments if you experience other issues with the app!

App Privacy

The developer, Apalon Apps, has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer’s privacy policy.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

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

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