Bring your call transcripts
Ten customer calls are enough for a first read. Quack reads them overnight and hands you what people actually said, quotes attached.
First evidence the morning after connecting.
Evidence before you build
The why, at every step of the build.
Not a document you write once. A record that reads what your customers say, holds what you decided, and flags when the two stop agreeing, while you are still building. Every product decision de-risked with evidence, not a hunch.
- 01 Listen
- 02 The why
- 03 Validate
- 04 Build
- 05 Measure
Building without a PM
Everyone builds faster. Who keeps the why?
Engineers hired. First customers live. Nobody owns product yet, so product gets decided by you, in Slack, on a hunch. It works, until the first feature you have to roll back. One founder we spoke to lost six months of engineering that way. Nobody could say afterwards why it was built.
Then the loud customer arrives. One call, one quote, and the roadmap moves, because nobody in the room has evidence to push back. Three months later, the thing you said you would do and the thing being built are two different things, and nobody noticed when they split.
If you inherited the job, a designer or tech lead deciding what ships without anyone saying so out loud, this is for you too. Have a product manager? They will get more out of it than anyone. We just don't think you should need one to keep the why.
- founder · the hunch
- sales · one loud quote
- design · inherited job
- roadmap · no evidence
one record of why Every decision. Its evidence.
One customer quote can move a roadmap.
Evidence should move it back.
Quack Stack reads what your customers and the market say, holds what you decided, and shows you where the two stop agreeing. It recommends. You decide. And you can check any of it.
How it works
From what they said to what you shipped
Five steps, one record. It gets sharper every time the loop closes.
- 01
Listen
Customer calls, support tickets, reviews, your own meeting notes, and what the market says beyond your customers. Read every night. Nothing for anyone to maintain.
- 02
Keep the why
Signals become a case for what is worth building, each line traced to who said it. What you decided is written down with its evidence, so nobody asks "why did we do this" in six months.
- 03
Validate
Before you commit engineers, say what has to be true. Kill criteria set up front, checked as evidence arrives. Bad ideas leave early, and cheaply.
- 04
Build
The why travels with the work: in Slack, in the IDE, in your AI tools. When what is being built drifts from what you decided, you hear it before it ships.
- 05
Measure
Shipped work is tracked against the claim it was built on. What worked strengthens the next case. What did not changes the picture. The loop closes.
Getting started
Three ways to start
You don't have to change how the team works on day one. Start where the signal already is, and add the rest when it earns its place.
Connect your customer voice
Point your support tools at us. The inbox nobody has time to read becomes a ranked case for what to build next.
Nobody else has to change how they work.
Connect your team channel
A short brief in the channel the team already reads: what customers said overnight, what needs a decision, what the evidence says.
No dashboard required. Value the next morning.
All three feed the same record. Keep your tracker, keep your Slack, keep your local AI workflow. Quack sits underneath.
It reads what you already have
See all integrations- Slack
- Zendesk
- Intercom
- HelpScout
- JustCall
- Notion
- Granola
- GitHub
- Linear
- Jira
- Claude
- ChatGPT
- Cursor
- MCP
- Command line
Stop guessing. Keep the why.
Twenty minutes with Patricia and Steve. Bring your roadmap; we will show you what the evidence says about it, and what Quack would need from you in week one.
Book a call
or start with the free discovery
StartFree discovery tier. We never sell your data or train on it.