Validate Your Riskiest Product Assumption Before You Build
A focused 5-day sprint that takes one product assumption and converts it into a validated prototype with real user evidence.
From £2,300
What five days actually buys.
The most expensive thing you can build is the wrong thing. The Hypothesis Testing Sprint takes your single riskiest assumption and tests it with real users in five days, so you know before you build whether it is worth the investment.
Built for · Scrappy Founder · Seed to Series A
Runway is finite and the riskiest assumption is still untested. Being wrong on paper costs days; being wrong in code costs months.
AI-augmented delivery
AI compresses synthesis, so five days buys more testing rather than more note-taking.
What you receive
- Hypothesis framing workshop
- Research and competitive scan
- Low-fidelity prototype
- User testing (minimum 5 participants)
- Findings and synthesis report
- Go / no-go recommendation
- Validated prototype for stakeholder review
Is your riskiest assumption still untested?
Teams about to commit to a significant feature or product direction, founders deciding whether to build, and anyone who wants to de-risk a major investment.
Why teams validate before they build
Because five days of validation is worth five months of building the wrong thing. We have run this sprint many times. The finding is almost never 'build exactly what you planned.'
How the 5-day product validation sprint runs
We structure every engagement so you always know where we are and what comes next.
Day 1: Define
Hypothesis framing, research plan, sprint kick-off.
Day 2: Research
User interviews, competitive landscape, evidence collection.
Day 3: Prototype
Low-fidelity prototype built to test the core assumption.
Day 4: Test
User testing with 5+ participants, live synthesis.
Day 5: Report
Findings, recommendation, and debrief call.
What a product validation sprint costs
Adjust the parameters to get a rough budget range. Every project is different. We scope properly before committing to a final number.
Estimated investment
£3,200
This is a rough guide. Final cost depends on actual scope.
Get a validation sprint quote
Services often paired with the validation sprint
Ready to start with Hypothesis Testing Sprint?
Book a free discovery call or tell us what you need and we will come back with an honest proposal.