5 Why + A3 Pair
Find the root cause in 5 Why Pro, then tell the story on one page in A3 Pro.
Best for: Running root cause and writing the A3, with the work carried from one into the other.
1 / 4Why tree: each branch down to a cause you can act on.
Not Sure This Is the One?
What It Does
Both problem-solving tools, built to work as one: 5 Why Pro proves the root causes and their actions, Send to A3 carries them into A3 Pro, and A3 Pro turns them into the one-page story for review. Each downloads as its own file from your account.
5 Why Pro
Branching why tree with evidence, checks, and contain / correct / prevent actions.
A3 Pro
One-page A3 with a review checklist, prints true 11x17, A3 or letter.
Send to A3
Root causes and actions move from 5 Why Pro into A3 Pro in one step.
See It in Action
Real screens from 5 Why + A3 Pair with its example loaded. Click any screen to enlarge; arrow keys step through.
What's Included
À la carte total counts each tool once at its single price; bundles inside this bundle count as their parts.
Who It's For
- Engineers and leads who run root cause and write the A3
- Coaches who review both
- Quality and maintenance teams closing repeat problems
Requirements
- Any modern browser (Chrome, Edge, Firefox, Safari)
- Windows, macOS, or Linux
Questions
Does it need internet or an account to run?
No. The download is a single file that opens in any modern browser and runs offline. Your data stays on your machine.
How does the free trial work?
Enter your email and the trial copy downloads right away. It is the full tool for 2 days from the first download, then it locks. Files you save during the trial are yours and open in the licensed copy. One trial per email per tool.
How does the license work?
One purchase covers one named user on their own computers. Your copy is stamped with your name and license key. A team license covers 5 named users. See the licensing page for the full terms.
Do I get updates?
Yes. Updates within the same major version are included. Sign in to your account to download the latest copy.
What is the refund policy?
Full refund within 14 days if the tool does not fit your work. Email support with your license key.
Works Well With
IE Templates Pro
Eight IE templates in one offline binder: FMEA, fishbone, 5S, SMED, kaizen, gemba, PDCA, process elimination.
Free now, $49 after launch
IE Calculator Pro
Every IE calculator from the site in one offline workbook, with scenarios, sensitivity, and the math shown.
Free now, $39 after launchEverything Else
Every tool is sold on its own, or use a whole tier on a plan. See all tools.