Bring one real dilemma. Decision Helper runs it through sixteen formal decision frameworks at once — then shows you the honest picture of where they agree, and where they pull apart.
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Every formal method is a lens with a bias built in. Ask three of them the same question and you'll often get three different answers — by design. That's not a flaw. It's the signal.
"Maximize the average payoff over every outcome."
"But you'll feel that loss about twice as hard as the gain."
"Choose the option you're least likely to regret later."
When sixteen honest methods converge, you can move. When they split, you've found exactly what to think harder about.
Write it the way you'd tell a friend. Two or more options, in plain language — no spreadsheets, no jargon required.
Name the outcomes that matter, roughly how likely they feel, and how much each one would help or hurt. Guesses are fine — the frameworks handle uncertainty.
Expected Utility, Prospect Theory, Bayesian, Regret, MCDA and eleven more each score your options through their own reasoning — in parallel, in seconds.
See where the methods line up and where they diverge — with each framework's reasoning laid out, so the choice is yours and you know why.
Five families of formal reasoning — utility, risk, regret, multi-criteria, and heuristics. Hover any one to see what it's built to optimize for.
Decision Helper never just says "do this." It shows you the whole panel's thinking at a glance, so you decide with your eyes open.
Bring the decision you keep turning over. In a minute, you'll know where the reasoning agrees — and what's really keeping you stuck.
Run your decision →