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Customer Discovery Interview Tracker For Lean Startup Founders

One link, one customer discovery interview tracker — the Mom Test script, a scoreboard counting interviews completed, and a poll surfacing the top problem the team is hearing.

The lean startup playbook says do 20 customer discovery interviews before writing real code. The trouble is, founders forget the script under pressure, double-count interviews, or fail to spot the pattern across 20 sessions. This customer discovery interview tracker combo wapin fixes all three. Your customer discovery interview tracker is one shareable founding-team link with the Mom Test script as a checklist (ask about specific past behavior, never future hypothetical behavior, never pitch the idea), a scoreboard counting completed interviews so the team sees the 20-interview milestone approach, and a poll where every co-founder votes on the top problem pattern they heard this week. As a customer discovery interview tracker it survives the actual schedule pressure of running 20 interviews in 4 weeks, because every co-founder is already in the same WhatsApp chat. Run the customer discovery interview tracker once and you will use the customer discovery interview tracker for every future product, because the customer discovery interview tracker is the only place the team sees who interviewed who and what they actually said.

Sample Customer Discovery Interview Tracker

3 apps · all in one link
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Customer discovery interview — script & cadence
Checklist
Open: 'Walk me through the last time you ran into [problem area].'
Probe: 'What did you do? What did that cost you in time / money?'
Probe: 'What workaround did you build? Why did that not work?'
Never ask: 'Would you use a tool that does X?' (hypothetical)
Never ask: 'How much would you pay for this?' (hypothetical)
Never pitch the idea — interviewee should describe the problem in their words
Close: 'Who else should I talk to about this problem?' (referrals)
Within 24h — log the interview on the customer discovery interview tracker
Tag the top quote and the top emotional moment
Friday — read-out: top 3 problem patterns from this week's interviews
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Customer discovery interview — completed count
Scoreboard
Scoreboard🏆
Highest first
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Target
-
20
+
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Founder 1 — interviews completed
-
7
+
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Founder 2 — interviews completed
-
5
+
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Top problem we heard on the customer discovery interview tracker this week
Poll
Poll30 votes
Problem A — 'I waste 2h a day on [task]'12 (40%)
EmmaLiamSofia+9
Problem B — 'I can't find the data I need'8 (27%)
NoahAva+5
Problem C — 'My team doesn't communicate'5 (17%)
JamesMiaOliver+2
Problem D — 'I can't track [process]'3 (10%)
No clear pattern yet — need more interviews2 (7%)

How it works

Step 1

Create

Go to wapins.com and create your customer discovery interview tracker. It takes 5 seconds — no signup, no email.

Step 2

Pin

Copy the short link and paste it in a WhatsApp chat with yourself. Pin that chat. Done.

Step 3

Use

Tap the link anytime to view or edit. Check off items, add notes — it all stays synced.

Frequently asked questions

Start your customer discovery interview tracker now

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