AI-native practice gym · Engineers & PMs

Build with judgment.
Or get replaced by a prompt.

Practice real scenarios across product sense, system design, data modeling, and coding, with Hatch coaching you in real time. Engineers stay relevant. PMs stay sharp. Everyone ships better.

Start free, no card →▸ See all disciplines
18k
Engineers & PMs
practicing weekly
92%
Sharper thinking
after 3 weeks
5
Disciplines, one
AI coach
Spotify · 15% Drop
+ New scratch
⏱ 12:48
AI-NativeFrame

Spotify's 15% session drop

DAU is steady but average session length has fallen 15% over 6 weeks. Eng says nothing changed. PM says retention looks fine. Where do you start?

6.4MDAU
−15%session
0incidents
Your answer
Frame score0/100
LIVE · Mock interview · Senior PM
14:22
Hatch · Senior PM Interviewer

Study plans, calibrated to your role

14 plans
Selected · for Builders shipping agents
Agentic Products
W1
W2
W3
W4
W5
Ask Hatch
Always-on · context-aware · brutally specific
● online
I'm stuck framing this. The metric moved but I don't know which lever caused it.
Graded · AI-Native challenge

Spotify's 15% session drop

82
Frame score
✓
Picked the right problem
You called out discovery vs. supply.
✓
Defined success up front
Clear: session length, leading indicator.
—
Named your assumption
'no eng changes' is a claim, not a fact.
Live · click below
Engineers & PMs from
StripeGoogleNotionFigmaVercelAnthropicMeta
Challenge tracks

One framework. Five disciplines.

FLOW (Frame, List, Optimize, Win) is the structured thinking pattern behind every challenge. Tailored to each domain, coached by Hatch.

PM · Eng · IC

Frame ambiguous problems, identify users, define metrics, and prioritize ruthlessly.

The FLOW framework
F
Frame the problem spaceWho's affected? What changed?
L
List hypotheses & signalsWhat data would you pull first?
O
Optimize your responsePick the highest-leverage action
W
Win with a clear recommendationCrisp, time-bound, owned
Sample challenge
“Spotify's daily active listeners dropped 12% over the last 3 weeks. You're the PM. Walk through how you'd diagnose and respond.”
Hatch saysGood. Now frame the user segment before you list hypotheses.
Try this challenge →
The product

Five rooms. One operating system for clear thinking.

Every screen below is live. Click around. These aren't screenshots.

01 · Practice

Drill the move, not the trivia.

Spotify dropped 15% session length. World Cup, or the new home feed? Pick a real scenario, write your answer, watch Hatch score your Frame in real time.

  • 420+ scenarios across 14 paradigms
  • Hatch reacts as you type, no waiting
  • Frame · List · Optimize · Win, every drill
Browse scenarios →
hackproduct.app/practice
Spotify · 15% Drop
+ New scratch
⏱ 12:48
AI-NativeFrame

Spotify's 15% session drop

DAU is steady but average session length has fallen 15% over 6 weeks. Eng says nothing changed. PM says retention looks fine. Where do you start?

6.4MDAU
−15%session
0incidents
Your answer
Frame score0/100
Live
02 · Live AI Interview

The mock interview that actually pushes back.

Voice-to-voice with Hatch. It interrupts when you wave hands, asks the follow-up your interviewer would, and grades you against the real rubric staff PMs use.

  • Senior, Staff, or APM difficulty; switches mid-call
  • Live transcript + rubric scoring
  • Replay any answer, hear what to fix
Try a 5-min interview →
hackproduct.app/live-ai-interview
LIVE · Mock interview · Senior PM
14:22
Hatch · Senior PM Interviewer
Live
03 · Study Plans

Six weeks. A new lens on product.

Pick the plan that matches what you're shipping next. Each week ladders specific moves into the next, with scenarios that reuse what you just learned.

  • AI-Native, Growth Loops, Agentic, Marketplaces, B2B SaaS, +9 more
  • Built by PMs who actually shipped these things
  • Adapts week-to-week based on your scores
See all plans →
hackproduct.app/study-plans

Study plans, calibrated to your role

14 plans
Selected · for Builders shipping agents
Agentic Products
W1
W2
W3
W4
W5
Live
04 · Hatch Coaching

Always-on coach, brutally specific.

Stuck? Ask Hatch. It's seen every scenario, knows your last 50 reps, and refuses to let you off the hook with vague answers.

  • Context-aware: knows what screen you're on
  • Pushes back on hand-waving, like a great mentor would
  • Explains the rubric, not just the score
Talk to Hatch →
hackproduct.app/hatch-coaching
Ask Hatch
Always-on · context-aware · brutally specific
● online
I'm stuck framing this. The metric moved but I don't know which lever caused it.
Live
05 · Grading

The rubric your future hiring panel uses.

Every answer scored across the four FLOW moves with a transparent rubric. See exactly which sub-skill broke down, and what to drill next.

  • Move-by-move radial score
  • Receipts: which sentences earned points
  • One-tap 'drill this weakness' for every miss
See sample report →
hackproduct.app/grading
Graded · AI-Native challenge

Spotify's 15% session drop

82
Frame score
✓
Picked the right problem
You called out discovery vs. supply.
✓
Defined success up front
Clear: session length, leading indicator.
—
Named your assumption
'no eng changes' is a claim, not a fact.
Live
People love it

Already thinking more clearly.

“I went from 'I'd run an A/B test' to actually framing problems. Two weeks of Hatch reps did what 6 months of reading didn't.”
P
Priya V.
Senior PM, Stripe
“The system design track is exactly what I needed before my staff eng loop. Hatch pushed back every time I hand-waved a trade-off.”
M
Marcus T.
Staff Engineer, Vercel
“As an eng moving into product, the product sense challenges gave me the vocabulary and structure I was missing. It clicked fast.”
A
Anika R.
Engineering Lead → PM, Anthropic
“The data modeling module is underrated. It's not just schema. It makes you think about access patterns and why. Really sharp.”
J
Jordan K.
Data Engineer, Notion
Hatch is always on

Every engineer and PM you compete with
is already practicing.

Serious access to all five disciplines, live AI-run interviews, context-aware coaching, and a leaderboard built around reps. Start now, cancel anytime.

5disciplines
24hours
AIinterviews
0scheduling
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Cancel anytime · join 18k+ engineers & PMs

FAQ

Things people ask us.

Is this just for PMs, or for engineers too?
Both, and that's the point. Engineers who understand product thinking, system design, and data at a deep level are the ones who stay relevant as AI takes over routine coding. HackProduct is for anyone who wants to think clearly and move fast.
Which discipline should I start with?
Start with what's most relevant to your next interview or current role. Engineers often start with System Design or Coding; PMs usually start with Product Sense. You can run all five tracks in parallel. FLOW transfers across all of them.
What is FLOW?
FLOW is the structured thinking framework behind every HackProduct challenge: Frame the problem, List your options and constraints, Optimize for what matters, Win with a clear recommendation. It's how the best engineers and PMs actually think, and it's learnable.
How much time per day?
20 minutes. The Quick Take is 60 seconds; the full daily session is around 20 minutes. Most people do it on lunch or a coffee break.
What makes Hatch different from just using ChatGPT?
Hatch knows your last 50 reps, tracks your weak spots in the FLOW rubric, and pushes back when you hand-wave. It's not a general assistant. It's a coach with context and a specific point of view on what good looks like.
Can my company expense it?
Yes. We have team plans and most companies reimburse it under L&D. Tap 'Team plan' on Pricing for an invoice template.