Arbitrage scanners: what they find, what they cost, which to try first

An arbitrage bet on one match

A surebet exists when two bookmakers disagree enough that you can back every outcome and win whatever happens. Take a tennis match. Bookmaker A prices player one at 2.10, bookmaker B prices player two at 2.05. Stake €100 on the first and €102.44 on the second, €202.44 in total, and either result returns €210. The profit is €7.56, or 3.7% of the money staked, before any bet is voided or any stake is cut.

That gap lasts minutes in prematch and seconds in play. Nobody finds it by hand across sixty bookmakers; software does it in one scan and lists the pairs with the stakes already split. That software is an arbitrage scanner, also sold as a surebet scanner, surebet finder, arb finder or sports arbitrage software. The names are interchangeable. The products are not.

Three feeds in one subscription: surebets, value bets, middles

Most scanners sell three feeds under one plan.

The surebet feed is the one above: two or three bets that cover every outcome. The value-bet feed is a single bet where one bookmaker's odds are higher than the other bookmakers agree on, so you are not guaranteed anything on that match, only paid better than the true chance over hundreds of them. The middle feed lists two bets on lines that leave a gap, a total of over 2.5 at one book and under 3.5 at another, where exactly three goals pays both.

Which feed you use decides which scanner you should buy. RebelBetting is a value-betting tool with a surebet module attached; the other four are surebet scanners first. A scanner that is excellent at one is often average at the other.

What arbitrage betting software does

It reads the odds at every bookmaker on its list every few seconds, compares each market across all of them, and writes a row whenever the numbers cross. The row shows the profit percentage, the bookmakers, the odds, the stake split for a total you choose, and how long ago it appeared. A filter narrows the rows to your bookmakers, your sports and your minimum profit; a click opens the bookmaker's page, sometimes with the bet already filled in.

Everything after that click is yours: checking the odds are still there, placing both bets fast enough, and living with the result when one bookmaker voids its side.

The scanner finds the row. The row is not the profit.

Is arbitrage betting legal, and is it welcome

Placing two bets at two bookmakers is legal wherever betting itself is legal. No scanner reviewed here is a bookmaker, none accepts bets, and all five say so on their own pages.

Welcome is a different question. Bookmakers dislike customers who only bet when the odds are wrong, and their terms let them cut stakes or close accounts without a reason. Account limits are the most common complaint under every scanner in this category, and the scanners' own help pages explain how to delay them: round stakes, ordinary odds, occasional plain bets, no withdrawals after every win. That delays limits; nobody in the reviews reports beating them for good.

Where the money goes wrong

Four things cost arbitrage bettors money, and a scanner prevents none of them.

The odds move between the row appearing and your second bet. One bookmaker voids a bet because of a «palpable error» in its line, and you are left holding the other side at full risk. A bookmaker limits your stake to a few euros on exactly the market the scanner found. And the row was never real: a mistake in the scanner's own data, a market that does not match across books, a match listed under two names.

The reviews count all four. BetBurger subscribers report line errors at roughly half the books one of them held; BreakingBet subscribers report rows that stay in the feed for hours after the odds have gone; RebelBetting's public answer to limits is that they prove the strategy works. A good scanner has fewer of these.

Free surebet scanners: two show matches, two show percentages

Every scanner on this page has a free entry, so free arbitrage betting software exists; what differs is what it lets you see.

Surebet's Free plan shows real matches with surebets capped at 1%, and counts the better ones in a header you cannot open. BetBurger's free-forever plan shows real value bets to about 2% and locks the surebet columns. Those two let you place a bet without paying.

OddStorm's free account and BreakingBet's show the arb and hide the match: percentage, bookmakers, time, and «hidden» or «xxxx» where the teams should be. They tell you the feed is alive, not whether you could use it. RebelBetting has no free plan; its 14-day trial takes no card, shows real matches and caps the percentages. OddStorm's 7-day trial takes a card and converts to a paid month on day 8.

What a surebet scanner costs per day

Monthly prices run from €15.74 to €290, which says little because the plans cover different feeds and periods. Per day of prematch access, the five sit between €0.38 (BreakingBet on a year) and €5.00 (OddStorm Pro). Live feeds cost €1.05, €6.33 or €9.33 a day at BreakingBet, OddStorm and BetBurger; RebelBetting and Surebet have no live feed at all.

At a 2% average margin, a plan is covered when your monthly stakes reach fifty times its price: €787 for the cheapest prematch plan, €14,500 for OddStorm's full bundle. The five-scanner comparison has every figure on one table, with refunds, auto-renewal, freezing and payment methods beside them.

A scanner is a fixed cost against a percentage. Work out the turnover before the features.

Five things to check before paying

• Your bookmakers in the filter. Open the bookmaker list from your own account and count the books you already hold. A 600-bookmaker scanner with four of yours is a four-bookmaker scanner.
• Auto-renewal. BetBurger, RebelBetting and OddStorm renew by default; Surebet and BreakingBet do not. Find the switch before you pay, not after.
• The refund rule. OddStorm gives seven days on the first plan, BreakingBet three, Surebet the unused days after a week, BetBurger the unused hours minus fees and a €35 penalty, RebelBetting nothing.
• The shortest period. Every scanner sells a day or a week for under €10 except RebelBetting and OddStorm. Buy that before the month.
• Prematch or live. If in-play is the plan, only three of the five have a feed, and the one that costs a ninth of the dearest is the one whose refresh rate nobody agrees on.

Tested from inside: five scanners

Five scanners tested from inside, none paid.

Every review on this page was written after opening an account: the free plans of BetBurger, Surebet and BreakingBet, the free account of OddStorm, the 14-day trial of RebelBetting. We read the plan page with every period, the feed with its masks, the bookmaker filter, the checkout, the user agreement and the refund page. We bought no paid plan, so scan speed and paid-feed quality come from the vendors' pages or from subscribers, and the text says which each time.

Five surebet scanners compared — one table: price per day, free access, refunds, freezing, bookmaker mix by region and the tools in the row. No ranking, because the five do not compete for the same bettor.

BetBurger — the widest list, 600+ bookmakers and 40 sports, live and prematch, a Telegram bot. Dearest for live at €279.99, harshest on refunds. Buy the €5.99 day pass before the month.

RebelBetting — a value-betting tool from Sweden with sure betting attached, prematch only, plans defined by percentage caps, a profit guarantee with 500-bet conditions. The best free trial in the category.

Surebet — the Minsk prematch scanner that renamed its plans to Free, Basic and Max while the web kept the old names. Basic at €29.90, no auto-renewal, refunds for unused days after the first week.

OddStorm — football only, in-play first, one to three seconds a scan by its own numbers, Pro from €150. The 2026 rebuild replaced the VIP tiers; the trial needs a card.

BreakingBet — the budget scanner from Murmansk: prematch €15.74, live €31.49, unlimited freezing, no auto-renewal. Built around Russian, CIS and African books.