Root Cause Analysis Suite

Find the cause.
Fix it for good.

Three connected tools — Ishikawa fishbones, 5 Whys, and one-page A3 reports — with AI assistance and cloud-saved projects. Go from "something's wrong" to a documented, shareable root-cause story.

We turn chaos into clarity — and plans into results.

AI-assisted Cloud projects Print-ready A3 No install

One workflow, three tools

Each tool stands on its own — but together they form a clean path from brainstorm to documented root cause.

Step 1 · Explore

Ishikawa

Brainstorm candidate causes across 6M or HOP categories, cluster related ideas, and let AI suggest causes you might have missed.

Step 2 · Drill

5 Whys

Drill a chosen cause to its root — linear or branching — with an AI check that flags symptoms vs. true root causes, plus corrective actions.

Step 3 · Document

A3 Report

Assemble a one-page PDCA story that pulls in your fishbone and 5 Whys, then print straight to a polished PDF for review.

Why teams use it

Built for engineers, quality, operations, and continuous-improvement teams who run real RCAs.

AI that nudges

Suggests next questions, drafts countermeasures, and spots duplicate or shallow causes.

Everything connected

Carry one analysis from fishbone to 5 Whys to A3 without re-typing.

Your data, saved

Cloud projects follow you across devices — no more lost browser files.

Share & present

Export print-ready A3 PDFs and JSON for handoff and audits.

Simple pricing

Start free. Upgrade when you want cloud projects and live AI across your team.

Free

$0 / forever
  • All three tools
  • Unlimited fishbones, 5 Whys & A3s
  • Save / load & PDF export
  • Cloud-saved projects
  • Live AI (suggestions, checks, countermeasures)
Get started free
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Pro

$19 / month
  • Everything in Free
  • Cloud-saved projects, synced across devices
  • Live AI — suggestions, root-cause checks, countermeasures
  • Connected workflow across all three tools
  • Priority email support
Start with Pro

Create a free account first; upgrade to Pro from your dashboard in a couple of clicks. Cancel anytime.