Web app · Games
Foresight
Put a number on the future — then find out how sharp your judgment really is
A play-money prediction market with 20 training questions, YES/NO backing at a live crowd price, Quick Play, XP and daily streaks, and a Track Record dashboard with your Brier score and calibration curve. Free, no install, no real money.
Stored in your browser only. Nothing you do in the web version is sent to our servers. Clear your browser data and it's gone — so export a backup from the in-app menu if you want to keep it.
In App Review — coming to the App Store
Foresight is with Apple now. You can use the full browser version today, and we'll email you the day the app is live.
0 waiting for launch
We'll email you once, when it ships. Unsubscribe anytime.
In your browser
What you can do in Foresight on the web
Back YES or NO with play-money credits
Every market has a crowd probability. YES shares cost the price, NO shares cost one minus it, and a trade nudges the price in log-odds space just like the iPhone app.
Your forecast is scored, not your bet
You state your own probability of YES on a slider. That number — not the crowd price — is what your Brier score, accuracy and calibration curve are built from.
20 timeless training markets
The full general-knowledge bank across Science, Tech, World, Culture and Sports, each with a definite answer you reveal when you are ready to be scored.
Calibration dashboard
Brier score, directional accuracy, calibration error, win streak, a bubble-plot calibration curve against the ideal diagonal, and a read on your confidence bias.
Today hub with levels, XP and streaks
Level titles from Rookie to Superforecaster, a daily bonus that scales with your streak, a Daily Challenge, crowd movers and 13 unlockable badges.
Quick Play and your own markets
Run the deck one card at a time with YES / NO / Skip, or write a market of your own and settle it yourself when you know the answer.
Screens
Every screen, rebuilt for the browser
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1
Today
Level, XP bar, streak, daily bonus, Daily Challenge, crowd movers and your net worth.
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2
Markets
Every open and settled market, searchable and filtered by category.
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3
Market detail
Crowd price chart, YES/NO split bar, your position, your calls and the settle controls.
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4
Place a forecast
Pick a side, set your own probability of YES, choose a stake and see shares, payout and edge vs the crowd.
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5
Quick Play
One card at a time: YES, NO or Skip, at a fixed stake, with XP on every call.
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6
Portfolio
Net worth, credits on the table, unrealised and realised profit, and every open and settled position.
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7
Track Record
Calibration grade, Brier score, accuracy, the calibration curve and every settled call.
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8
Achievements
All 13 badges with progress, plus the level-title ladder.
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9
New market
Write your own yes/no question, set the opening probability and a close date.
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10
Settings
Default and Quick Play stakes, reset the bank, restore the training markets, export, sample data and erase.
Try it with sample data: Loads a lived-in studio: the 20 training markets, 15 forecasts including 12 already settled, three open positions, a personal market, Level 6 and a 6-day streak. You can start fresh at any time.
Ready? It's free.
No account, no install, no subscription. Everything you do stays in this browser.
Your say
What should Foresight do? Tell us before we build it.
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Questions
Is the web version of Foresight free?+
Yes. Every screen is free to use: no subscription, no in-app purchases, no account.
Do I need an account?+
No. Open Foresight and start using it right away. Sign in with Google only if you want to upvote an app, save it to your list, or leave a comment.
Where is my data stored?+
Only in this browser's local storage. Nothing you enter is sent to our servers, so we can't see it, back it up, or restore it. Clearing site data, a private window, or another device starts empty. Export a backup from the in-app menu to keep it.
When is the Foresight iPhone app out?+
Foresight is in App Review with Apple now. Tap “Notify me at launch” and we'll email you once, the day it's live.