The Lean Six Sigma Calculator is developed with consultancy advices from an experienced Lean Six Sigma professional who has been deploying the methodology for more than 15 years in the financial services industry, providing strategic quality planning, training and project facilitation to management, black belts and green belts from general banking, insurance and technology operations across 18 countries in Asia Pacific.

This application provides a set of 15 commonly used Lean Six Sigma calculations, which are essential to managers, sponsors, champions, black belts, green belts and other professionals throughout the DMAIC improvement cycle. The simple user interface design, graphic displays, and benchmark information of this calculator give you useful data to review the problem, analyze the root cause and define the best fit solution. It also provides you a mean to easily communicate your findings to convince relevant stakeholders in a quantitative rather than a qualitative manner. With this set of calculators downloaded in your iPhone, you will be able to master the application of Lean Six Sigma for competitive continuous improvement at the finger tips.

What’s New

Version 3.8

- Support for iPhone X
- Software improvement and polish

Ratings and Reviews

3.3 out of 5
3 Ratings

3 Ratings


Good tool but stopped working

Enjoyed using until the app completely stopped working

War Director, no Stars! ,

Good Black Belt Tool

I like this app. It has calculations relevant to practicing 6 Sigma Black Belts. The capability analysis for discreet and continuos data is great.

I would prefer a version that does not clear the data when you leave the card. This also goes for the descriptive statistics.

I find the coffee stained background to be annoying and like a version that allowed me to turn that "feature" off. The stains also appear in the emailed copies - I don't get the stains.

App Privacy

The developer, Leo, Chan C H, 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.


5.5 MB

Requires iOS 9.3 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating


  • Family Sharing

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

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