Name the assumption.
Turn a broad product idea into a focused question. Define what you need to learn before you commit to building.
Evidence over guesswork
A clearer path from product idea to informed decision. ProofSprint helps founders and product teams approach validation one focused sprint at a time.
Ask. Test. Learn. Repeat.
Our founding principles
The ProofSprint approach
You don't need another sprawling roadmap. You need a useful question, a focused experiment, and a next step everyone understands.
The working mindset
“What would change our mind?”
Start here. Let the evidence shape what happens next.
Turn a broad product idea into a focused question. Define what you need to learn before you commit to building.
Bring customer observations, experiment notes, and team context into the same conversation. Keep the signal connected to the question.
Review what you learned. Decide whether to move forward, change direction, or run another sprint.
Plans & pricing
Explore the available plans below. Choose the option that fits how you work.
For individuals getting started
$0/month
Less debate. A clearer next step.
Bring your biggest question. Start a focused sprint with ProofSprint.