Beta
OddsGuard

The better price, on the page you are already on.

You do not have to open six tabs to know whether your book is the cheapest one. The comparison appears beside the odds you were about to click.

Also onSafari·Get it on Microsoft Store·Mac

Try it on a sportsbook page, right here.

A real sportsbook layout on live prices, in a browser that is not yours. Switch books with the tabs, change the sport, and watch the comparison appear beside the odds — exactly where it appears once it is installed.

Loading...

Detecting your location…

  • Free — no subscription, no in-app purchase
  • No account, no card, no email
  • Overlays 42+ sportsbook sites
  • We never place a bet or hold your money
Bookmakers priced
75+Bookmakers priced
Sportsbook sites overlaid
42+Sportsbook sites overlaid
Leagues covered
500+Leagues covered
Live prices right now
40000+Live prices right now

Three steps, then it is just there

  1. 1

    Install it

    Add OddsGuard to your browser, or install the desktop app if you use Chrome, Edge, Brave, Opera or Vivaldi. No account, no card, about ten seconds.

  2. 2

    Open your sportsbook

    Browse as you normally would. OddsGuard recognises the odds on the page — the same numbers any logged-out visitor can see — and looks up the same bet elsewhere.

  3. 3

    Take the better price

    Where another book pays more, a badge appears next to the original price with the difference and a one-tap route to it. Where nothing beats it, nothing appears.

What actually appears on the page

Nothing is added until there is something worth adding. Where your book already has the best number, the page looks exactly as it did.

A better-price badge

Sits next to the original odds, names the book paying more, and shows the difference in the odds format you already read.

Positive expected value flags

Where a price is out of line with the rest of the market rather than merely the best on offer, the badge says so. Those are the two different things most comparison tools show as one.

Parlay comparison

Prices your whole slip, not just one leg. A four-leg parlay compounds four small differences, which is where the money in line shopping actually is.

Live bonus offers

Every in-date promotion from every book we track, filtered to your state or country, in a tab inside the extension rather than in your inbox.

One tap to the better book

The badge links straight to the same market at the book quoting it — not to that book's home page for you to find the match again.

Nothing when nothing beats it

No badge, no banner, no nag. A tool that always has something to say is a tool you turn off in a week.

Every browser, one product

The Chrome Web Store does not accept this category, so Chromium browsers run the same overlay through a small desktop app instead. Same comparison, same data, one extra install.

What it reads, and what it does not

The extension only runs on the sportsbook sites it supports, and on those it reads the odds any logged-out visitor can see. It never signs in to your account, never sees your balance, and never places a bet.

Dormant everywhere else

On any site that is not a supported sportsbook, the extension does not run at all — so there is no browsing history for it to collect.

No account to use it

There is nothing to sign up for. An account exists only if you want settings to follow you between devices.

How it is paid for

A bookmaker pays us a commission when someone we referred opens an account with them. That is the whole business model, and it is why the comparison itself is free.

Questions about the extension

Install it before your next bet

About ten seconds, no account, and it pays for itself the first time your book is not the best one.

Also onSafari·Get it on Microsoft Store·Mac