How we work: sources, comparisons and the sure-bet engine

Sources and updates

Our guides are built from primary sources wherever they exist:

• Law and tax: the legal texts themselves (for Austria the RIS federal law database, for Slovakia the Slov-Lex database and the gambling regulator ÚRHH, for Germany the GGL), and official guidance from tax authorities.
• Licences: the regulators' own licence lists and, in Slovakia, the ÚRHH list of prohibited offers. When a bookmaker is not licensed in a country, we say so with a neutral flag rather than hiding it.
• Bookmaker rules: the bookmakers' published terms and settlement rules, read at the date given on the page.
• Maths: written out on the page, with every worked example recalculated before publishing. Where a result depends on assumptions (stake size, number of bets, odds), the assumptions sit next to the number.
• Research: peer-reviewed or preprint papers when we cite findings about markets and bettors, linked at the end of the page.

Every guide ends with a list of sources and shows the date it was last updated at the top. Facts that change quickly, such as fees, licence lists, prices and comparison tables, also carry an "as of" month. When a rule changes, we update the affected pages in all four languages (English, German, Spanish, Slovak), not only the one where we noticed it.

What we don't do: copy competitors' articles, publish pages written to fill a keyword list, or invent numbers. If we can't verify something, we leave it out or say that it is unverified.

No paid bookmaker links, no rankings for money

Much of the betting content on the web is funded by bookmaker affiliate fees: the site earns when you open an account through its link. ArbVantage doesn't work that way.

• We have no affiliate agreements with bookmakers and none of our links to bookmakers earn us money.
• No paid placements: no bookmaker or tool provider can buy a position in a list, a mention in a guide or a better score in a comparison.
• Our only revenue is the subscription: €97 a month after a 14-day free trial. That gives us a reason to be useful to bettors, not to send them to a particular bookmaker.

ArbVantage does have a referral programme ("Invite friends"): users who recommend ArbVantage to friends receive a payment when those friends pay for a subscription. It concerns our own product only, and its terms are public in the referral terms.

How we score comparisons

Some of our pages compare tools or tool categories, including ArbVantage. A comparison written by one of the compared parties needs rules, so these are ours:

1. Objective, checkable criteria. Price, what is included, which bookmakers and markets are covered, how fresh the data is, whether stakes, fees and settlement rules are handled, alerts, trial terms. No "overall score" made of opinions.
2. A date and sources. Every comparison table carries an "as of" month, and the facts come from the providers' own public pages or from a documented test.
3. Our own gaps included. Where ArbVantage is weaker, the table says so; for example, some local Austrian and Slovak bookmakers are not in our odds feed yet. ArbVantage is listed first only where the facts support it.
4. Fair wording. Competitors are named factually, never disparaged, and not linked with followed links. Comparative advertising in the EU has to be objective and verifiable (Directive 2006/114/EC), and we write to that standard.
5. Corrections. If a provider or a reader shows us that a fact is wrong or out of date, we correct it and update the date.

How the engine finds sure bets

The guides explain the maths; the scanner applies the same maths to live prices. Odds come from a commercial odds data provider, and every quote carries the time it was last seen. Before anything is shown to you, the engine runs these checks:

• Data age. Quotes older than 20 minutes are discarded for events within three hours of kick-off. Further from kick-off, when prices move more slowly, the limit is scaled up. Within one market, a quote that lags more than five minutes behind the newest quote is dropped, so a bookmaker whose feed has stalled can't form a leg. Sure bets are only displayed while their prices are recent, and push alerts are only sent for prices checked within the last three minutes.
• Outliers. A bookmaker whose margin-free prices deviate by more than 10% from the median of the market is excluded from that market; that pattern usually means an error, a different rule set or a stale price. In thin markets without a sharp reference bookmaker, sure bets are capped at 4%.
• Plausibility caps. A sure bet above 15% is not hidden, but it is marked "check carefully" and ranked after every normal one. Above 30% it is dropped as implausible. These are almost always palpable errors that a bookmaker may void (see voided bets and palpable errors).
• Fees. Exchange commission is priced into the odds before any calculation, and the Austrian and German betting fees are applied per user according to the bookmaker and country.
• Settlement rules. Only markets that settle on the same outcome are paired. Markets with rule differences that matter, such as overtime in ice hockey or Asian quarter lines, carry a flag so you check the bet slip.
• Ranking. Opportunities are ranked by size and freshness together: a fresh 2.5% ranks above a 3% that was last seen fifteen minutes ago.

In-play betting is not covered: prices change faster than a scanner can reliably confirm them. Value bets are coming soon and are not shown yet. A step-by-step introduction to the maths is in sure betting explained and how to find arbitrage bets.

Legal wording and player protection

We describe what the software does, not what you will earn. No page promises income or profit, calls sure betting risk-free or claims that a tool improves your chances of winning. Sure bets carry real risks: odds change before the second leg is placed, bets get voided and bookmakers limit winning accounts. Every number on the site is an illustration with its assumptions next to it.

ArbVantage is information software, not a bookmaker and not betting or financial advice. You decide every bet and bet at your own risk. Our pages are for adults (18+) only. If betting stops being fun, the responsible gambling page lists free help. The disclaimer and the imprint give the full legal details.

FAQ

Who writes the guides?

The ArbVantage team, the same people who build and run the scanner. We don't name individual authors on the site. Every page is published by ArbVantage, operated by Enkova s. r. o. in Slovakia, which is responsible for the content under the imprint.

How often are pages checked?

Every page shows the date of its last update. When a law, a fee, a licence list or our own price changes, we update the affected pages in every language. Pages with fast-changing facts, such as comparison tables and bookmaker lists, carry an "as of" month and are rechecked regularly.

Do bookmakers pay you?

No. We have no affiliate deals with bookmakers, no paid links and no paid placements or rankings. ArbVantage is paid only by its subscribers. Our own referral programme pays users for inviting friends to ArbVantage; it has nothing to do with bookmakers.

Can I report a mistake?

Yes, please do. Email support@arbvantage.net with the page address and what is wrong, ideally with a source. We check every report, correct confirmed errors in all languages and update the date on the page.

Sources

• RIS: Austrian federal law database
• Slov-Lex: Slovak legal database
• Úrad pre reguláciu hazardných hier (ÚRHH), Slovakia
• Gemeinsame Glücksspielbehörde der Länder (GGL), Germany
• Directive 2006/114/EC on misleading and comparative advertising

As of October 2026. Not betting, legal or tax advice. 18+.