Ivy is an experimental big number calculator.

It uses exact rational arithmetic so it can handle arbitrary precision. It also supports high precision irrational values that result from operations such as square root. Values may be input as integers, rationals, or floating point values.

• Arbitrary floating point formatting
• Exact rational arithmetic
• High precision irrational arithmetic
• APL-like vector and matrix operations.
• Trigonometric, logarithmic, and exponential functions

A more complete description of the underlying engine is available at

What’s New

Version 1.1

This app has been updated by Apple to use the latest Apple signing certificate.

Interpreter improvements and iOS 10 support.

Ratings and Reviews

3.9 out of 5
29 Ratings

29 Ratings

xXHughJanusXx ,

I don't know

I don't know... got some pretty big numbers....

Time Squire-in-Training ,

• does NOT use 'standard' arithmetical syntax

This ISN'T a 'standard' calculator -- it doesn't function like one, and it isn't intended to be used as such. Its syntax is APL-based. One *must* understand (or learn) its syntax. Great for the right tasks, especially those that require high or exact precision. Fantastic for fractional computation, systems verification, 'manual' calculation of parameters and target coordinates, etc. We employ this app for field computations, as a verification tool, and as an emergency backup 'computer'. Hope development continues. Very happy to see this app being updated!

Phonedrivefan ,


I don't do much complex math, but very occasionally I need to do something with high precision, and it's great for that. The UI is probably the weakest part, you can't easily reuse your last line, you have to copy and paste it, or if you're proactive, assign it to a variable. The extra buttons for the operations don't insert where the cursor is, they always insert at the end of the line.

But I doubt the quirks will be fixed. it's useful regardless, and I'm very glad it exists!

App Privacy

The developer, Google LLC, 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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