Free for a limited time!

CrunchJr is a powerful computational engine which is augmented by a large selection of MiniApps. Users can choose from 250+ MiniApps, 300+ functions and 200+ constants ranging from health/fitness to physics to financial and everywhere in between. Users can also save the results of their computations in custom defined variables. There is a ton of documentation to help you if you get stuck, or to just find something interesting.

What’s New

Version 4.0

[] CrunchJr is "one of the most powerful number cruncher tools available on the iPhone/iPad ecosystem"
[] Upgrade/support for new device types
[] Upgraded the Search algorithm
[] Fix to Calories-per-Workout computation
[] Upgrade to retirement SSPayout computation
[] Several minor bugfixes and enhancements, and several new Constants added (including Tau, which some people suggest is better to use than Pi).

Ratings and Reviews

5.0 out of 5
1 Rating

1 Rating

a-non1 ,

I Love It

What an awesome app! It's got hundreds of useful functions which help make my homework easier. Recommend for any high school or college student. You will find it useful!

NancyAmn ,

Calcs & more

Great product...easy to use and has every calculation you need in one place

iPadfan13 ,


Calculates answers to an amazing array of questions from refinancing to exercise to math homework. It looks great for engineers, but has application for everyday life. Good value!

App Privacy

The developer, Mark Furtney, has not provided details about its privacy practices and handling of data to Apple.

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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