Practice like the
interview is real.
Timed whiteboard challenges with a live interviewer, rubric-based scoring, and actionable feedback — so you're ready when it counts.
Real interview-style challenges
Work through realistic UX and product design scenarios — the kind you face in actual whiteboard rounds.
AI-led practice sessions
Think through your approach out loud. The AI interviewer asks follow-up questions, pushes on tradeoffs, and keeps the session moving like a real interview.
Rubric-based feedback
Every submission is scored across five dimensions with written feedback and specific next steps you can act on.
A real challenge. An AI that pushes back. A score you can act on.
"Design a way for frequent travellers to manage and track their loyalty points across multiple airlines and hotel brands."
Strong problem framing. Push deeper on user context before jumping to structure.
Pick a challenge
Choose from realistic whiteboard prompts across UX and product design. Each is scoped for a timed session — like a real interview round.
Work through it live
Explain your approach, walk through decisions, and handle follow-up questions from the interviewer. No notes, no safety net.
Get scored feedback
Submit your work and get a score across five dimensions with specific written feedback on each — not just a number.
Come back and improve
Your history tracks scores over time. Use the feedback from each session to sharpen the areas that cost you in the last one.
Pressure that mirrors the real thing
Practicing alone in a doc is nothing like an interview. MindFuddle runs timed sessions so you build the habit of thinking clearly under constraint — not just when you feel ready.
Follow-up questions that test depth
The interviewer doesn't just listen. It pushes back, asks you to justify decisions, and probes the parts you glossed over — exactly what good interviewers do.
Scoring that tells you where you actually stand
You get a score across five dimensions — problem framing, user understanding, product thinking, interaction design, and reasoning. Not a vague pass/fail, but a specific read on your current level.
Feedback you can act on immediately
Each dimension comes with written feedback and concrete next steps. You leave every session knowing what to work on — not just how you did.
Stop guessing how
you'll perform.
Start a session in under a minute. No account needed to try it. Sign up when you want to track your progress.