Your assumptions are piling up. When did you last test one?
Capture assumptions in seconds. Then track evidence, spot what's going stale, and make decisions you can defend. Not a spreadsheet. A system.
Enterprise buyers will pay $50k/yr
Users can complete onboarding without a demo
Our API can handle 10k concurrent users
Teams will share across departments
CRM users will switch for better analytics
Most ventures don't fail from bad execution. They fail from untested beliefs.
Every team starts with good intentions. They fill a Miro board, open a spreadsheet, or have a great offsite. Then Monday happens. The assumptions get buried under feature backlogs, sprint planning, and investor decks. Six months later, the venture fails — and the fatal assumption was sitting in row 47 of a spreadsheet nobody opened since week two.
How It Works
Capture
Write down every assumption your venture depends on. Bulk paste, type inline, or paste a transcript.
Enterprise buyers will pay $50k/yr !!5 @via #pricing
Rank
Score by importance and evidence. The riskiest assumptions surface automatically.
Enterprise buyers will pay $50k/yr
CRM users will switch for better analytics
Users can complete onboarding without a demo
Test
Log evidence from interviews, analytics, or experiments. Link it to assumptions.
7 of 10 interviewees said they'd pay $50k+ if onboarding was faster.
re: Enterprise buyers will pay $50k/yr
re: Users can complete onboarding without a demo
Decide
Validated, invalidated, or need more? Record the call with rationale.
Enterprise buyers will pay $50k/yr
7/10 interviews confirmed willingness at $50k. Two said they'd pay more for dedicated onboarding.
Jan 22, 2026
Most tools help you plan. We make you learn.
Assumptions aren't a checklist. They're a living system. Evidence flows in. Beliefs update. Staleness resets. Decisions get recorded.
Staleness tracking
Assumptions glow hotter over time. You can't ignore them.
Evidence centralization
One insight links to multiple assumptions. Nothing gets lost.
Decision ritual
Validated, invalidated, or need more? Record the call.
Built for how founders actually think
Cmd+K quick capture
Add assumptions as fast as you think. Inline syntax like !!4 @des #pricing for power users. Bulk paste a whole list at once.
AI transcript processing
Paste an interview or meeting transcript. AI extracts new assumptions and matches evidence to existing ones automatically.
Automatic risk scoring
Each assumption is scored by importance and evidence strength. The riskiest ones — high importance, low evidence — surface to the top.
Staleness tracking
Assumptions that go untested glow hotter over time. No more hiding behind backlogs. The hard questions stay visible.
Evidence linking
One interview insight can support or contradict multiple assumptions. Log evidence once, link it everywhere it matters.
Decision ritual
When the evidence is in: validated, invalidated, or need more. Record the rationale. Build institutional memory.
See what's inside
Four views. One system. Everything connected.
Enterprise buyers will pay $50k/yr
Users can complete onboarding without a demo
Our API can handle 10k concurrent users
Teams will share across departments
CRM users will switch for better analytics
“Built by a venture builder with 13 years of experience turning corporate ideas into standalone businesses — across Europe and Greater China. This is the tool I wished I had on every engagement.”
Matthieu Bodin
Founder, The Motion Bridge
Simple pricing
Start free. Upgrade when you need more.
Free
Get started. No credit card needed.
- 30 assumptions
- 1 project
- 3 team members
- Evidence logging
- Risk scoring
- Decision log
- Export
Pro
For builders running multiple ventures.
- Everything in Free
- Unlimited assumptions
- 20 projects
- AI document processing
- Export & reporting
- Priority support
Team
For venture studios and innovation teams.
- Everything in Pro
- 20 team members
- Shared assumption library
- Admin dashboard
No credit card required. Start building your assumption map in under 2 minutes.