The Sky Bet Club pays £5 in free bets to anyone staking £30+ in qualifying bets per week, among top features you check out in the full Sky Bet review. Best Odds Guaranteed covers UK and Irish racing from 10am every day, on singles, multiples and system bets but not ante-post or specials, with a maximum benefit of £150 per bet. Also unearthed in our Bally Bet review, Boxing, UFC and MMA carry 30+ markets each, more than double what Sky Bet offers on the same events. The Bally Bet sign up offer is £30 in free bets paid as three £10 tokens. The BetMGM sign up offer gives £40 in free bets as 4 x £10 tokens.
William Hill’s app rates 4.7/5 on iOS and 4.3/5 on Android. Acca Winnings Boost lifts returns on four-plus selection multiples, which is a great incentive for casual weekend punters. #YourOdds is the platform’s beloved request-a-bet feature. The operator has a long-standing partnership with the PDC, and our William Hill review highlights how consistently it posts the earliest outright prices for the World Darts Championship. The loyalty programme is genuinely competitive, and 24/7 customer support is available via live chat, email and phone.
Racing fans get Best Odds Guaranteed from 10am, Extra Places every day, and a free bet of up to £10 a day when their horse finishes second to the betting sites SP favourite. Its 3.8/5 Trustpilot score from 4,200+ reviews is one of the strongest on this list, ahead of Sky Bet (3.5/5) and well clear of bet365 (1.3/5). Punters have 30 days to use them, over 4x longer than 10bet’s 7 days. BetMGM has trimmed niche markets like politics, WWE and chess in favour of deep American sports coverage (NBA, MLB, NHL, NFL). The site offers unlimited acca boosts that scale from 10% on 3-leg accas to 200% on 20-leggers. As our BetMGM review found, its global casino expertise shows in a 4.6-rated mobile-first app free of legacy desktop clutter.
Star Sports suits racing punters who like dealing with a smaller specialist firm and value phone betting. NetBet offers flexible cash-out options on a variety of sports, giving you the ability to manage your bets and secure a profit before the final whistle. The free bets from the welcome offer stay valid for 30 days, longer than most, and the apps are rated 4.7/5 on iOS and 4.3/5 on Android. The current Paddy Power sign up offer is £30 in free bets when you place a £5 first bet on the sportsbook at odds of evens (2.0) or bigger. Racing is the specialism, with Best Odds Guaranteed on all UK and Irish racing from 8am, extra places and live streaming of UK and Irish horse and greyhound racing for a £1 minimum stake. For existing customers, Unibet offers daily boosted odds via Uniboost, allowing you to enhance your own prices up to three times a day on UK and Irish horse racing.
Quickbet’s £25 free bet expires 24 hours after it lands. The headline welcome offer is the easiest thing to compare and the least useful over a season. The in-play stats overlay, built on the same Opta data used in TNT Sports broadcasts, adds a level of depth few rivals match. The free bet club is the strongest ongoing reason to use Virgin Bet over rivals. Racing specialists who want Best Odds Guaranteed, and anyone chasing the biggest welcome offer, should look higher up this list.
The Betano app has an impressive 4.8/5 rating on iOS (one of the highest on this list). The qualifying window is one of the tightest on this list, so make sure to claim the offer soon after signing up. Betano arrived in the UK market in 2024 and quickly made a name for itself, sponsoring several notable football tournaments, including currently the UEFA Europa League and Conference League. Customer support hours are limited, and some payment methods are excluded from the welcome offer. Football fans who want Bet Builders on other sports may prefer a rival. Its Trustpilot score is 1.2/5 from 4,300+ reviews, joint lowest on this list, and there is no VIP or rewards scheme.
The platform prices up 40+ sports and has one of the widest live-streaming catalogues, with over 700,000 live events streamed a year. Of the 30+ UK bookmakers we tested, bet365 takes top spot overall and especially among the best in-play betting sites. TNT Sports also ranks the best UK sports betting sites, worth comparing against our picks below.