OttoWhy

Find the cause.
Fix the system.
Prove it worked.

Most problem-solving stops at the first plausible answer. OttoWhy runs the Toyota Five Whys method properly — it keeps asking until the answer is a system you can change, not a person you can blame.

Get the beta when it drops

Android build lands shortly.

How it works

01
State the problemPlain language. What happened, when, and how you know.
02
Answer five whysOttoWhy pushes back on vague answers, blame, and "bad luck." Those aren't causes.
03
Land on a system causeA process, a check, a handoff — something you control.
04
Set a countermeasureOne change, one owner, one date.
05
Verify it heldOttoWhy comes back and asks whether the problem recurred. That's the part everyone skips.

Built for

Trades & field service

Callbacks, rework, the same fault twice on the same site.

Small operations

Missed invoices, late jobs, orders that fall through a crack nobody named yet.

Anyone tired of guessing

Household, vehicle, workshop. The method doesn't care about the domain.