Describe your idea
Messy notes are welcome. Confirm the interpretation before anything is tested.
Evidence before engineering
Run the assumptions before you build the product.
Describe your app idea. AssumptionRun identifies its riskiest assumptions, creates a realistic experiment, and shows you what real users actually do.
3 controlled Run types
Behaviour, not hype
Private by default
Human evidence
One controlled loop
From belief to observable behaviour.
AI can make almost any idea sound convincing. That is not evidence. A Run turns one commercial assumption into an observable task with a pre-agreed threshold.
Choose an assumption
See the commercial uncertainties most likely to break the idea.
Generate an experiment
Create a controlled demand, workflow, or positioning Run.
Share with real people
Publish one private link. Testers need no account.
Review the evidence
See behaviour, limitations, objections, and a responsible next decision.
Choose how you run
Move alone. Or add a human checkpoint.
Fast evidence, founder-led.
Build and publish a controlled Run without waiting for an expert.
- Editable assumptions
- Controlled prototype
- Automated evidence report
A second pair of sceptical eyes.
The same workflow pauses for human review at the plan, prototype, and report.
- Run Plan review
- Test-integrity review
- Expert-approved conclusion
Build smaller. Learn sooner.