iPad Screenshots


Jumbo Calculator is the super simple large-buttoned calculator for everyone, ages 2-92*. While you can't feel the exquisite texture of its large plastic buttons (and the included solar panel doesn't actually charge your battery), Jumbo Calculator succeeds at its main purposes: adding, subtracting, multiplying, and dividing. One size fits all.

· Easy to read and find buttons (you might be able to touch type on a touchscreen).
· Simple gestures for backspace (swipe the calculator screen) and copy & paste (double tap).
· A smaller version of the calculator in landscape for when you're too tired to stretch your fingers.
· VoiceOver support for blind and low-vision users.

If you're under the age of 2, parental supervision is recommended. If you're over the age of 92, congratulations, and of course you're also welcome to use Jumbo Calculator.

What’s New

Version 1.3.1

• Split-screen multitasking support
• Improvements for iPad Pro 11" & 12.9" (3rd Generation)

Ratings and Reviews

3.3 out of 5
7 Ratings

7 Ratings

David Hammersley ,

Clean and simple

This calculator would be perfect for me if it had a % button.

I like this design much better than other calculators available, it's clean, simple and has no ads. I would pay for this if it had a % button.

Developer would you consider?

Colin exhale ,

Very good big Calculator ..

Have a look..

eloise watt ,


This is a horrible app do not get it. It doesn’t even work

Developer Response ,

I’m sorry you’re having issues; can you help me figure out why this is happening to you? Please send an email with type of iPad you have & iOS version to jumbocalculator@christopherweems.com and I will be in touch. Thanks.


Christopher Weems
24.9 MB

Requires iOS 9.1 or later. Compatible with iPad.


English, French, Italian, Japanese

Age Rating
Rated 4+
© 2010-2019 Christopher Weems


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

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