This is an editorial directory, not a ranking or a list of recommendations. Search results often put a UK betting exchange next to a US-only app, even though the products and rules are not equivalent. The table tells you what each operator describes, and what we could establish from its published material on the review date.
| Provider | Product described | UK access signal | Guide |
|---|---|---|---|
| Matchbook | Peer-to-peer betting exchange | UK-facing exchange context; verify account eligibility and individual markets | Read guide |
| Smarkets | Betting exchange and prediction market platform, per operator | UK-facing exchange context; verify account eligibility and individual markets | Read guide |
| Robinhood | US prediction markets hub | UK access to this product not confirmed | Read guide |
| Coinbase | Prediction contracts via Coinbase product | Official help says US residents only | Read guide |
| Polymarket | Event-outcome markets | Official help lists UK as restricted | Read guide |
| Kalshi | US event-contract exchange | UK access not independently confirmed | Read guide |
| DraftKings | DraftKings Predictions | Official product specifies physical location in eligible US states | Read guide |
| FanDuel | FanDuel Predicts | UK access not confirmed for this US-facing product | Read guide |
| Underdog | Underdog predictions / fantasy products | UK access to prediction product not confirmed | Read guide |
| Fanatics Markets | US event-market app | Official guide says 21+ US resident; state restrictions apply | Read guide |
How to compare without a score
Begin with the product’s legal operator and eligibility, then read its question wording and settlement source. Compare whether you can see a live order book, how a price is expressed, the spread or fee schedule, whether early exit is supported and how disputes are handled. These criteria tell you more than a star rating would. Our liquidity guide explains why a nominal quote is not always an executable one.
“Not confirmed” means our review did not establish UK availability for that specific prediction product. It is not a claim that a brand has no UK presence. Likewise, an exchange being UK-facing does not mean every market is offered to every customer. Terms, locations and market catalogues change.
Data is not a platform recommendation
A large trading total cannot tell a UK reader which app is permitted or suitable. Our prediction-market volume report and wash-trading research note put the numbers in context. Return to the eligibility and settlement criteria in this directory before assessing any provider.