Hj HIMANSHU JAIN
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Case Study · Product I built

PM Quest

A Duolingo-style app for learning product management — because reading about PM doesn't make you one, and I spent a decade learning exactly how people build a skill by doing, not reading.

EdtechAI GradingLearning DesignGamificationCareer Tools
RolePM + builder, end-to-end
StackNext.js · Supabase · Groq
StatusLive

01 The problem

Aspiring PMs — people like me, mid-career, switching in — face a wall of content: articles, frameworks, YouTube courses. You can consume all of it and still freeze the first time someone asks you to write a PRD or prioritise a backlog.

The gap is between knowing about product management and being able to do it under pressure. Passive content doesn't close that gap; practice with feedback does. This is the single clearest thing a decade of teaching taught me — students who only watch lectures don't improve; students who attempt problems and get corrected do.

The teaching insight behind it

You don't learn Chemistry by reading the textbook cover to cover — you learn it by attempting problems, getting them wrong, and understanding why. PM is no different. PM Quest is that principle turned into a product: attempt, get graded, learn from the gap.

02 The design bet

The bet is that PM learning should feel like Duolingo, not a textbook — short, active, repeatable units with immediate feedback, rather than long passive lessons. The hard part isn't the gamification; it's the feedback. Multiple-choice is easy to grade but tests recognition, not thinking. Real PM questions are open-ended — "how would you prioritise these three features?" — and those need judgement to assess.

03 How it works

1 · Learn

Bite-sized units

Concepts delivered in short, active lessons rather than long-form reading.

2 · Attempt

Case mode

Open-ended PM scenarios — prioritisation, metrics, tradeoffs — that mirror real interview and on-the-job prompts.

3 · Grade

AI feedback

Groq-powered grading evaluates the reasoning in a free-text answer, not just a right/wrong key.

4 · Progress

Track & return

Progress persists per user, so learning compounds across sessions rather than resetting.

04 The hard part: grading open answers

The core product challenge is the same one at the heart of ChemIQ — how do you evaluate a free-text answer fairly and consistently? A grader that's too harsh discourages; too lenient and the feedback is worthless. Getting the grading prompt to assess reasoning quality — did they consider the user, the tradeoff, the metric — rather than keyword-matching is the difference between a real learning tool and a quiz.

05 What I'd watch next

Honestly, PM Quest is live but hasn't been through structured user testing. The questions I'd want answered:

This case study is written from the product as built. Learning-outcome and retention data will be added once PM Quest has been through a proper round of user testing.

06 What building it taught me

See it

Case study · PM Quest · Himanshu Jain← Back to all work