Calculator Plus - PRO 4+

Simple calc for tip & percent

DigitAlchemy LLC

Designed for iPad

    • 4.9 • 550 Ratings
    • $3.99



The world’s favorite calculator app, with more than 40 million downloads worldwide. The perfect day-to-day calculator for both iPhone and iPad, Calculator Plus is easy to use and beautifully designed to be your daily calculator.

Calculator Plus makes math simple and fun with crisp HD and a layout for fast and easy calculations. Solve all of your everyday calculations, from simple addition to fractions and multiplication. Calculator Plus remembers everything you calculate, and lets you review your history and past calculations anytime, making it perfect for shopping, doing homework and schoolwork, balancing checkbooks, making tips, taking notes, calculating taxes, and everyday math problems you’re sure to encounter.

Calculator Plus is also an exceptional school calculator. Calculator Plus is the perfect calculator for teachers, students, and working professionals. If you quit the calculator and go do something else, it's all still there whenever you come back. You'll never need to type the same calculation twice again making it the perfect math calculator to take the best notes and solve any problem.

- Calculations in clear, elegant type that's easy to read
- Perform all the basic calculations you could ever need including addition, subtraction, division, multiplication, and percentages
- Use backspace anytime to correct a simple mistake, instead of starting over
- Keep track of your results using the memory buttons and history screen
- Express yourself with light and dark themes
- For more complicated and advanced problems, use options like squaring, square root, percent and the pi button

Try out Calculator Plus – the simplest, strongest equation solver around! From everyday addition and subtraction to complex percent and fraction problems, you can solve and track it all for free.

Download Calculator Plus for your iPhone or iPad and finally put that handheld calculator to rest.

This version of Calculator Plus is ad-supported. An ad-free version is also available. Calculator Plus © 2022 Digitalchemy, LLC

What’s New

Version 6.4.9

- Fixed minor issues reported by users.
- Please send us your feedback!

Ratings and Reviews

4.9 out of 5
550 Ratings

550 Ratings

Dreamshark ,

Just pay for it

I used the free version for a long time. This was my fave Calc because of the simple clean design. All I really wanted was big numbers, basic functions, and a memory. Then the ads switched from a simple strip across the top to an unbelievably intrusive full screen video of a puppy that popped up constantly, rendering the app unusable. At first I was mad, but finally realized that $2 for an app I use every day is hard to argue with. So I bought the thing. But if the ads had been behaving like this when I first tried this app I would have deleted it immediately.

tiktoktik ,

Still a terrific calculator...

Been using this calculator for years & it's still my favorite basic calculator. I especially appreciate the easy access to the reciprocal (1/x) feature, something not usually available on a basic handheld calculator. I also love the "paper tape" feature which allows me to easily double check my calculations. The paid version is well worth its very small cost & eliminates the annoying ads. All in all, just a very nicely designed, very functional app.

Chico21115 ,

Awful Clicking Sounds Now Not Removable

I bought this app a couple years ago for the sole reason that the standard iPhone installed calculator app had awful clicking sounds when hitting every key on the keyboard, with no way to silence it.

Until today this Calculator Plus had no sound with it, and was wonderful to use. With this latest update, users no longer can turn off the extremely annoying click sounds. I wrote the app techs to see if there is any way to get rid of the clicking sounds. If they cannot be silenced, I will be deleting this app, and finding a silent one.

I was advised by the app developer within days who advised that the only way to silence the keyboard sounds is to completely turn down the iPhone’s ringer and other sounds manually, which I don’t want to do since I would then no longer be able to hear incoming calls, messages, or emails.

The developer said that its next app update would include an options button to turn off the keyboard clicks. Until that happens, my suggestion is for all iPhone users to go back to using Apple’s default Calculator app, which happily no longer has keyboard clicking sounds.

Developer Response ,

Hello! Thank you for the feedback, and we're sorry for inconvenience caused by key sound. For now you can turn it off by using device button to turn on/off sound (on the left side). Although our developers are working on next update where this option will be available from the app menu. Again, we're sorry for inconvenience. Additional comments please send to us at

App Privacy

The developer, DigitAlchemy 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

    Up to six family members can use this app with Family Sharing enabled.

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