iPad Screenshots


Ishikawa diagrams were proposed by Ishikawa in the 1960s, who pioneered quality management processes in the Kawasaki shipyards, and in the process became one of the founding fathers of modern management.
It was first used in the 1940s, and is considered one of the seven basic tools of quality control.It is known as a fishbone diagram because of its shape, similar to the side view of a fish skeleton.
Mazda Motors famously used an Ishikawa diagram in the development of the Miata sports car, where the required result was "Jinba Ittai" or "Horse and Rider as One". The main causes included such aspects as "touch" and "braking" with the lesser causes including highly granular factors such as "50/50 weight distribution" and "able to rest elbow on top of driver's door". Every factor identified in the diagram was included in the final design.
Cause-and-effect diagrams can reveal key relationships among various variables, and the possible causes provide additional insight into process behavior.
Causes can be derived from brainstorming sessions. These groups can then be labeled as categories of the fishbone. Causes can be traced back to root causes with the 5 Whys technique.
This App will provide you a template on iPad to develop fish-bone diagram to solve your problems or develop new products.Hit the corresponding text of Cause1/Cause2/effect and add your own causes or effect.Give a name to the current diagram and save it.
Menu > New Diagram - for new diagrams
Hit Action button to print the diagram.
Hit drop down button to view and select saved diagrams.

What’s New

Version 5.1

Light mode set for user interface style.Dark mode support will be added later.

Ratings and Reviews

2purrs ,


Do NOT buy this worthless rip off! You get one fixed template, with no ability to edit STRUCTURE--only the text names on each of the predetermined cause branches.

You can't even remove unnecessary items for visual clarity!!!

It can't be used effectively in team brainstorming or workshops, and there are literally dozens of other apps that will let you draw a diagram as you require.

Apple - c'mon here!! How did this worthless POS get in the App Store?

WilcTX ,

It's OK

This is a good 1.0 release. I would like to see a text entry mechanism in future releases that allows inputing text in an indented hierarchy that eliminates having to use my fat fingers to select the desired "bone". Allowing for a variable number of main and subsequent bones will also allow for different root cause analysis processes to be used. Overall a good first effort.

ACE70 ,

Great Attempt

This is the first app that even attempts to automate fishbone diagrams, and for that it gets a thumbs up. However, the interface forces you to have a set number of causes and effects, and data input is clumsy and cumbersome.


8.6 MB

Requires iOS 8.0 or later. Compatible with iPad.



Age Rating


  • Family Sharing

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

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