Design Decision Tool

Your design
decisions deserve
a fight.

Paste your design rationale. Get a structured counter-argument.
Three rounds. A scored verdict. No encouragement.

See pricing

Free tier — no account required

Your rationale — Round 01
"We should use a carousel here. It's a familiar pattern users already know."
The Counter
Familiarity isn't the same as effectiveness. Carousels are a well-documented way to hide content — most users never interact past the first frame. You've chosen a pattern users recognise, not one that serves them.
Round 01 / 03Defend your position →
The process
01

State your rationale

Describe the design decision you've made and why. A layout choice, a pattern, a product call. Any decision counts.

02

Defend under pressure

The opponent pushes back. Three rounds. Each harder than the last. You respond, clarify, fight for your position.

03

Take the verdict

A structured score across four dimensions. Where your argument held. Where it cracked. What you missed entirely.

The verdict

Four dimensions.
No softening.

ClarityStated but not structured. The argument needs a spine.
User impactYou considered the end user more than most do.
DefensibilityCollapsed under the second round of questioning.
Blind spotsMobile edge cases were never addressed.
⚑ Flagged
In the field
"

I was certain about a navigation decision I'd spent two weeks defending. By round two I couldn't hold my own argument together. We redesigned it the next morning.

Sara K.Senior Product Designer
"

The verdict flagged a blind spot I'd been quietly skirting for a month. Cheaper and more honest than any design review I've sat through.

Marcus T.UX Lead, fintech
"

It doesn't tell you what to do. It makes you realize you didn't actually know why you were doing it. That's the uncomfortable part. Also the useful part.

Priya M.Head of Design
Pricing

Challenger

Free

Try the sparring. No account needed.

  • 3 sessions per day
  • 1 round per session
  • No sign-in required
  • No session memory
  • No verdict scoring

No account required

Sparring Partner

$9/mo

The full fight, saved for 30 days.

  • Unlimited sessions
  • Full 3-round format
  • 30-day session history
  • Scored verdict on every session

Account required

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