Line shopping usually means opening several sportsbooks and memorizing which price was best five minutes ago. OddsGuard automates that on supported sites: it reads what you already see, checks our live feed, and surfaces a better price inline when one exists.
What you’ll learn
- What data OddsGuard reads (and what it never touches)
- How we match your selection against 75+ price sources
- What the on-page overlay shows — delta, best book, and quick link
- Why you should still confirm the final price on the bet slip
Step-by-step
- 1
You land on a supported sportsbook
No login required for comparison. OddsGuard works on the public odds already rendered on the page — the same numbers a logged-out visitor can see.
- 2
We read the visible market
The extension identifies the selection you are viewing (team, line, market type) from the page structure sportsbooks expose to the browser.
- 3
We compare against our live feed
That selection is cross-checked against our continuously updated feed from 75+ connected price sources for the same market, filtered to books available in your region.
- 4
A better price triggers the overlay
When a higher payout exists elsewhere, a compact tile appears next to the original odds: best price, difference vs. the book you are on, and a link to open that book when deep linking is available.
- 5
You confirm on the bet slip
Lines move, especially in live markets. Always verify the final price on the sportsbook bet slip before you submit — the overlay is a signal, not a guarantee at click time.
What OddsGuard is not
OddsGuard does not log into your sportsbook accounts, move money, or place wagers. It is an information layer on top of pages you already visit.
We do not guarantee outcomes or that a highlighted price will still be available when you finish building a bet — we show you where the market was when we compared.
Where you can use it
The same comparison engine runs in the Firefox extension, the iOS and Mac Safari app, and the Windows desktop app for Chromium-based browsers.
Coverage depends on your region and which sportsbooks we integrate with — the overlay only activates on domains we support.
Ready to try it?
Prefer the FAQ format? See How does OddsGuard work?.