Casumo vs Duelz
Both UK-licensed, both slot-led. One has a decade of UK trading; the other is the newer challenger.
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Order reflects the overall letter grade. The grade is not a winner-takes-all judgement — each operator has its own strengths, and the head-to-head duels lower down the page break that out properly.
Founded in Malta, Casumo has run in the UK for over a decade and turned trophies and missions into a recognisable casino style.
Casumo launched in 2012 and has held a UK Gambling Commission licence since 2014, which lines up with how strict UK rules became around player protection. The brand built its reputation on a gamified layer of trophies, level-ups and short missions — that loop is friendlier than most for newcomers, although seasoned players sometimes find it gets in the way.
On games, the catalogue leans heavily on slots from NetEnt, Play'n GO, Pragmatic Play and Hacksaw Gaming, with a respectable live casino studio run by Evolution sitting alongside. Table games are present but not the headline. The Casumo app is available on both iOS and Android and is one of the more polished native apps in the UK market.
Duelz wraps a duel-and-spells theme around standard casino play, with rewards tied to in-app battles rather than the usual bonus rounds.
Run by Hero Gaming under a UK Gambling Commission licence, Duelz launched in 2018 and built its identity around a duel mechanic — players unlock spell-style boosters as they wager, and many features are dressed in a fantasy wrapper. That theme is divisive: it works well for players who enjoy a meta-layer, and it's friction for anyone who just wants a straight slots session.
Game-wise this is a slot-led operator. The library covers NetEnt, Yggdrasil, Microgaming and Quickspin, with smaller live casino coverage through Evolution. There is no native app — the operator goes with a progressive-web-app style mobile site instead, which loads quickly but lacks the home-screen polish of a true app.
A smaller UK-focused brand built on the White Hat Gaming platform, with a tighter library than the bigger names and an Asian-flavoured visual style.
Happy Tiger is one of several UK-facing brands running on the White Hat Gaming platform, which means the underlying account flow, banking and responsible-gambling tools look familiar if you've used Casushi, Mr Q-adjacent sites or other White Hat brands. UKGC licensing sits with the platform operator, which is a common arrangement and isn't unusual in itself.
The catalogue is smaller and more curated than the big-three operators — a few hundred slots from the main studios plus a compact live casino selection through Evolution. The visual identity is playful and Asian-flavoured, with a tiger mascot used throughout. There's no standalone native app: mobile is web-based, but the site is well-optimised for phones.
A bingo-first UK heavyweight that's been UKGC-licensed since 2002, now part of the wider Bally's / Gamesys stable.
Jackpotjoy is one of the oldest UK online gambling brands still trading under its original name. It launched in 2002, was UKGC-licensed from the beginning, and grew up alongside the UK online bingo scene. Today it sits inside the Gamesys group, which is itself part of Bally's Corporation — that's a long ownership chain, but the brand has stayed consistent and recognisable.
Bingo is still the headline: 75-ball, 90-ball, themed jackpot rooms and chat-led community games are the core. Slots, scratchcards and a smaller live casino round it out, and Gamesys-developed exclusives sit alongside titles from Pragmatic, NetEnt and IGT. Native apps on iOS and Android lead with bingo rather than feeling like a slot-app port.
A UK-founded operator that started in esports betting and has since pulled a slot library and live casino in alongside its sportsbook.
Midnite is one of the newer UK-licensed brands worth knowing about. It launched in 2020, originally focused on esports betting, and has since added a full sportsbook and a casino product. The visual style is mobile-first and minimalist — closer to a fintech app than a traditional casino UI — which makes it easy for newcomers and a little plain for players coming from livelier sites.
The casino library is slot-led and runs into the thousands of titles, drawing on Pragmatic Play, Hacksaw, Nolimit City, Relax Gaming and others. The live casino section exists but is smaller than the slot count. There's no native app on the casino side as of writing — mobile is a progressive-web-app build that installs to your home screen on iOS and Android.
One of the longest-running British bookmakers, BetVictor has carried that heritage into a broad and well-built online casino product.
BetVictor traces its history to 1946 as a Sussex bookmaker that later became Victor Chandler International before rebranding. It has been UKGC-licensed since the licensing regime took its current shape, and it generally features in industry awards for its sportsbook — that maturity carries into the casino side, which doesn't feel like an afterthought.
The casino library is broad: thousands of slots from Pragmatic Play, Play'n GO, NetEnt, Hacksaw and the rest of the usual studio set, plus a deep Evolution-powered live casino and a strong selection of branded tables. Native apps cover iOS and Android. The brand also tends to lead with sensible welcome offers rather than headline-grabbing claims, which is a positive in this segment.
A flat table is fine for sorting on a single number. Pairing operators up on the same criterion is better at telling you why one fits and another doesn't. Below: licensing history, headline product, the live casino, and mobile.
Both UK-licensed, both slot-led. One has a decade of UK trading; the other is the newer challenger.
Two of the longest-trading UK brands here — but with very different ideas of what an online casino is for.
Two newer UK brands with very different approaches: a curated white-label catalogue against an in-house mobile-first build.
Eight pillars, each graded individually, then weighted into a single editor letter grade. Nothing here is generated by a vendor scoring algorithm — every grade is set by hand and reviewed when the page is refreshed.
Is the operator listed on the Gambling Commission's public register? How long has the licence been held, and under which legal entity? Brands trading under a long-running platform licence are treated differently from operators holding their own.
Deposit, loss, session and time-out limits — present, easy to find, and active by default? Is GamStop integration in place? Are reality checks turned on out of the box? Is identity verification handled upfront rather than at withdrawal?
Total catalogue size matters less than coverage. We check that the major slot studios are present, that table games are stocked, and that the operator isn't leaning entirely on one provider's feed.
Which provider runs the live tables — Evolution, Pragmatic Live, Playtech, or a smaller studio? Are the staples covered (roulette, blackjack, baccarat) and is there anything beyond the basics?
Distinct from the catalogue point: how broad is the studio mix? An operator with a thousand titles from one feed is narrower than one with three hundred titles from a proper spread of providers.
Native app on iOS and Android, PWA-style mobile site, or simply responsive web? Each is fine, but we note which it is so you know what to expect before you sign up.
Live chat hours, email, phone, and how easy it is to find the help centre. Newer brands are usually live-chat only; older bookmaker-rooted brands tend to keep a UK phone line.
How quickly you can find a game, set a limit, contact support and read the bonus terms. We weight this against the visual style: a busy theme is fine if it doesn't bury anything important.
Four UK-focused services worth knowing about, whether you're here for a one-off comparison or are coming back regularly. None of these are run by the operators we list, and none are run by us — they're independent and they're free.
Yes. Every operator on this site holds a current UK Gambling Commission licence and is listed against the Commission's public licensee register. If a brand loses its licence, we remove it. We don't list anything that's running on an offshore licence and serving UK players unofficially — there are sites that do, this isn't one of them.
No. We're not owned by, part of, or financed by any operator. This is an independent editorial site that earns referral commissions when a reader signs up at a listed casino, and that's all the relationship is. The same disclosure sits in the footer of every page and on the affiliate disclosure page.
Eight pillars: UK licensing history, responsible-gambling tooling, breadth of the game catalogue, the live casino offer, which studios they carry, mobile (web and native), customer support, and overall usability. Each is graded individually and then weighted into a single letter grade. The /getting-started page expands on what we look at first if you're new to this.
Two reasons. A flat 50-row table tells you which brand has the highest score, but nothing about why. Pairing operators up on the same criterion forces a real comparison sentence: the BetVictor live casino is deeper than the Jackpotjoy one, but Jackpotjoy is the better bingo product. That's more useful than a single rating.
GamStop is the free national self-exclusion scheme for Great Britain. Sign up once, choose a period from six months to five years, and you're locked out of every UKGC-licensed online gambling site for that window. All six operators on this site are part of GamStop because the Commission requires it. Details on gamstop.co.uk.
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