Baseball stadium at night under floodlights
MLB · live now NFL · Week 1

Every number, graded in the open.

Certy prices every game against every sportsbook, shows you exactly where the number is wrong, and posts its call before first pitch — win or lose, nothing gets deleted.

Or just look at tonight’s card — it’s free, no signup
Free through the season opener· No card required· Baseball running today·21+
Running right now

The model is already working. Here's tonight.

Real output from tonight's MLB slate — priced off both starting pitchers and the ballpark. Posted before first pitch, graded after.

Tonight's board · MLB logged pre-game
Every line above was written to the ledger before first pitch and cannot be edited.
How it works

Four steps, and you never do the math.

01

Pick your book

Choose your sportsbook once at signup. Every play you tap opens straight into it.

02

We price every game

The model runs all night on every game and every book, then compares its own number to what each book is offering.

03

You see where it's wrong

Each play shows our number, the best price available, and the book's hold — so you can see the value, not just take our word.

04

Tap to bet, we keep the receipt

Build a slip, send it to your book, and the pick gets graded publicly after the game. Wins and losses both.

The app

Built like a trading terminal. Reads like a text from a friend.

No firehose of 200 bets. A short card of plays where the math says the number is wrong — with the reasoning in plain English on every one.

  • Our number vs the best priceEvery book, vig stripped out, so you see the real edge in cents — not a vague "confidence" score.
  • Straight or parlay, one tapBuild the slip in-app with live payout math, then send it to your sportsbook.
  • A record that can't be editedEvery call is timestamped before the game. The running ledger lives in the app — including the misses.
Open tonight’s card
Tap to open →
Go deeper

The research behind the number.

Every week the engine writes a scouting report on the games worth reading — where a team is breakable, what the market hasn't priced yet, and the numbers behind it. Five are free. The rest come with the week pass.

Tonight’s report  
 
4 more reports free this week.  Full slate + every prop board unlocks with the week pass.
Free, always
$0

Enough to know whether we're any good before you spend a dollar.

  • The daily card — top plays, both sports
  • Our number, best price, and book hold on every play
  • Tap straight through to your sportsbook
  • The full public ledger, misses included
  • 5 research reports every week
Start free — open the app
Week pass
$29 / week

The whole slate, the prop boards, and the research on every game.

  • Every research report, not just five
  • Home run board — every hitter, every park, every matchup
  • Touchdown board when football starts
  • Line-move alerts when the market comes to us
  • Your own CLV tracking on plays you tail

Founding members get the week pass free through the NFL opener. No card at signup.

Baseball on the infield at night
Why trust it

Most picks accounts delete their losses. We can't.

Every call is written to a ledger before the game starts and graded after. You can see the whole history — not a highlight reel of good weeks. We also publish how well-calibrated the model is: when it says 30%, those should hit about 30% of the time.

Public ledger opens tonight · 0-0
Calls logged today
Backtest · being remeasured
Baseball tonight. Football in a month.

Get in before the opener.

Early access is running on the MLB slate now. Founding members keep the week pass free through NFL Week 1.

Free through the opener·No card required·21+