Founder math, free, no signup.
Two tools you'll reach for again. Use them once and walk away — or sign up to save and run them across your whole portfolio.
Each one answers a decision you can't take back.
Free forever, browser-only. No data leaves your device. Sign up if you want to save and revisit.
9-factor co-founder equity calculator
Idea, time, capital, expertise, network, risk, role, opportunity cost, brand. Weight them, score them, get a defensible split with the math visible.
Run the calculatorFounder + investor portfolio tracker
Track every check, advisor grant, and side bet in one queryable list. Cap, discount, MFN, and the post-money math whenever a portfolio company raises. Free forever, browser-only.
Open the trackerThe full workspace handles every decision, end to end.
Free tools answer a single question. OwnershipFlow answers all of them — across idea, raise, operate, and exit.