Kwiff Sister Sites 2026: Kwiff Casino Review, Alternatives & Bonuses

One of my favorite sportsbetting and casino sites in the UK is Kwiff. They're offering some top-notch UK betting options, a great variety of slots with plenty of bonus spins, as well as some great collection of live dealer tables and other games.

Kwiff customers can experience a wonderful gaming session with this best UK sports betting and casino site and if you've tried them even, you're most certainly going to want to learn more about the top Kwiff sister sites. The thing is, the options at Kwiff are available on one other platform only. Yes, there aren't dozens of sister brands to Kwiff.

The company behind them has focused on a couple of UK betting sites only so as to be able to make them the best casino platforms available within the country. And they're quite successful in doing so. If you'd like to know more, in this review I'm going to guide through what does the Kwiff sportsbook and casino site offer and which is the best site like Kwiff. 

• License: UK Gambling Commission, MGA
• Owner: Eaton Gate Gaming Limited
• Welcome bonus: 200 free spin on Book of Dead on a min £20 wager
• Popular features: supercharged odds, plenty of jackpot mechanics, lots of table games and a wide range of live casino games, plenty of casino slots, a native mobile app
• Sister sites: GRP casino

A list of Kwiff Sister Sites for 2026

There is only one sister site to Kwiff and let me show you what it offers.

GRP casino

GRP casino has almost the same general look and feeling as you’ll find with Kwiff. They’re a casino site only, with no sportsbook included, but that doesn’t stop them from becoming one of the top brands you’d be able to find within the UK. At GRP casino you’ll discover an enormous variety of slot games with many jackpots, live and table games, crash a nd arcade titles. They also feature plenty of tournaments, along with up to 200 free spins as a welcome offer.

Bonuses with sister sites

Best Kwiff casino bonuses: Top free bet and free spins offers with the Kwiff UK casino

Even thought there isn't a deposit match offer for casino games currently running, there are some great casino and betting bonuses available on a 1st deposit and wager. I'll show you a few of Kwiff's bonus offers just to help you get to know the casino website better.

200 free spins on Book of Dead

The welcome offer at Kwiff is credited to players who make a first wager of £20 on slots within 5 days of their initial deposit. It credits you 200 free spins on Book of Dead with spin value 10p. Standard deposit exclusions apply and if you use Skrill, Neteller, Paypal or virtual cards, you’d not be eligible for the offer. The spins are credited within the next 24 hours and their winnings are wager-free. Max bonus winnings convertible to real money is set at £250.

Bet £10 get a £10 free bet

With Kwiff new players can claim a nice sports betting bonus on their first min £10 deposit. There’s an added requirement, though, which needs you to wager at least £10 on min odds 1.50 within 5 days of your first deposit to claim a £10 free bet valid for 7 days.

Bet £10 to get £30 in free bets

Another interesting opportunity has the same rules but a different bonus. On a min deposit and wager of £10 on eligible sports betting markets with min odds 1.5 you can get a £30 surprise bet credited within 48 hours of bet settlement.

What’s there to say about the owner of Kwiff casino sister sites?

Kwiff casino is owned by Eaton Gate Gaming Limited, a company licensed by the UK Gambling Commission to offer casino games and sports betting within the country. They operate one other site and that’s the GRP casino brand. They’re becoming quite popular among UK players and I fully expect that there will be more Kwiff casino partner sites in the future.

Online casino games at Kwiff and sites similar to Kwiff

Both Kwiff and the alternative Kwiff sister sites are some of the best online casinos available for UK casino players. The sibling sites offer a wonderful variety of titles which I managed to check out in depth. 

Slots

Plenty of popular slots greeted me at Kwiff. And the site even showed me which ones were the most popular, like Bullets and Bounty, Big Bass It’s a Whopper, Christmas Leprechaun Luck Cash Collect, etc. They also showed me which the Kwiff’s top picks were and I did enjoy them quite a lot, especially the exclusive Kwiff Thor’s Rage, the Big Bass Surf’s Up, Cloud Princess, Mummy’s Jewels and Golden Winner.

Then I landed on the Vegas slots where I managed to play the Bulls Eye Bandits, Reaction Link and Wild Roll. But a much more entertaining experience was awaiting me with the Megaways slots where I gave it a go at the Gold Megaways, Cash ‘n Rishes WOWPOT!, the Eye of Horus, Cash Riches, Reel King and Poseidon Ancient Fortunes.

Once I got tired of those, I decided to check out the Drops & Wins with Wild West Gold, Book of the Fallen, Starlight Princess and Fortune of Olympus. Sure enough, those were some quite entertaining titles but many more like them are available if you’d like to give them a try.

At Kwiff there are also various categories which I was able to browse through depending on the providers. As per usual, I headed straight to the Nolimit city titles of which Kwiff had the amazing 99 slots. Mental’s my favorite, along with Deadwood R.I.P. and the San Quentin titles.

Jackpot slots

One of the things I liked the most about Kwiff is their huge selection of jackpot slots. With Age of the Gods titles, jackpots on the Big Bass series, the Mega Moolah mechanics and King Million games, they certainly had a lot to offer me. But that’s not all because they’ve also got several other top-notch jackpot collections, like:

• WOWPOT
• PowerPlay
• Blitz Jackpot
• Crash games

With Kwiff there’s a good collection of crash games, too. They’ve included an exclusive Kwiff Red Baron, along with High Flyer, FlyX, Spaceman, Big Bass Crash and dozens of others. Those allow for a great gaming experience with one of the most modern gaming mechanics.

Table games

One of the most comprehensive table game collections I’ve ever seen is the one at Kwiff. They’ve got:

• Dozens of blackjack tables like Premium, Classic, American, Multi Hand, First Person, Single Deck, Free Chip and others;
• Lots of roulette games such as 10p, 20p Roulette, XXXtreme Lightning, Mega Fire Blaze, Quantum Roulette and various others;
• Poker tables such as First Person Video Poker, Casino Hold’Em, Jacks or Better and Aces and Eights;
• Baccarat such as XXXtreme Lightning, Sic Bo, First Person Bac Bo and others
• Game shows like Dream Catcher, Hi/Lo, Deal or No Deal, etc.

Live casino games

Once I saw the variety with the table games, I expected the same with the live dealer casino games. And I wasn’t disappointed. They had all I wanted to play, like Mega Roulette, Lightning Roulette, Adventures Beyond Wonderland, Red Baron Live, Crazy Time, Power Up Roulette and many blackjack titles. When it comes to poker, they offered me Caribbean Stud, 2 Hand Casino Poker, Video Poker Live, Casino Hold’Em, Three Card Poker, Texas Hold’Em and various others. Baccarat also offered me numerous tables like Speed, No Commission, Mega, Squeeze, Quantum and various others.

What’s out there for you to bet on with the best betting sites like Kwiff casino?

Kwiff has thousands of events and markets for players to bet on, too. They feature the most popular sports (football, tennis, horse racing, etc.), some more niche disciplines such as table tennis and gold, along with e-Leagues and virtual sports.

The bookie has premade bets, including acca’s, too, which you can pick from. But that’s not all. I could go on and on about their options but we’re here to see what the casino offers mostly. Still, I could not stop before I mention their suprecharged odds. They’re provided at random and getting such a bonus is know as being kwiffed. It’s interesting, indeed, and may lead to quite a few huge wins.

Design and usability of the Kwiff website and the sites similar to Kwiff

The casino and sports betting site is truly one of my favorites because they've got an amazing design and are offering quite an easy to use platform. The wide range of sports is easy to look through and I had no issues finding the markets I'd like to bet on even as a new customer. The bookmaker has made everything easily visible and the useful categories above make navigation hassle-free. That's also part of why I consider them one of the best online sports betting platforms within the UK. 

Same's valid for their casino secton. Because Kwiff offers one of the easiest to use gambling platforms and navigation is made much more player friendly thanks to the games being divided in neat categories. 

Most common payment methods and best alternatives at the online casino

The most popular payment methods available at Kwiff are the debit cards. The casino features Visa and Mastercard and allows instant transactions through them. They also have the Pay by Bank option including with Open Banking and they provided me the opportunity to use Payz or Revolut if I wanted. With all methods the minimum deposit amount is £10 only.

Same payment options can be used on withdrawal. The processing time is within 24 hours on the casino’s side and then you’ve got some more waiting time depending on the payment method you’ve used. For cards it’s up to 3 business days, same as for Open Banking, while Paypal and Payz are instant.

Mobile play with the best Kwiff sister sites

One of the biggest benefits of Kwiff and its sister sites is the fact you’ll discover a native mobile app. Such is available for iOS and Android and you’d be easily able to download it directly through the site, via App Store or Google Play. It works seamlessly, doesn’t lag and offers everything available on the desktop version. With real-time notifications, it’s one of the best ways to stay updated on everything happening on the site.

But you’d be also able to play on mobile directly through your browser because the Kwiff’s site is fully optimized for betting on the go.

Kwiff review of customer support options

I managed to find a couple of options to contact the support center of Kwiff:

• Live chat which is available all the time and you’d be able to reach the support within just a couple of minutes.
• Email at [email protected] which was also available directly through the ‘email us’ button.

There’s a great Help section at the website where you’d be able to check the answers to some of the most important questions. I browsed quite a lot through it and it cleared up any confusions I had.

Pros and cons of Kwiff and Kwiff sister sites 2026

There might not be a huge list of alternative Kwiff sister sites but the couple of casinos offered by the company are more than enough for me to be sure that Eaton Gate Gaming Limited certainly knows what they're doing. 

Responsible gambling with the casino games at the Kwiff sister sites

The Kwiff casino experience is a great one. But the casino operator has made sure you’d be able to limit your gambling to reasonable levels. To help you out with that they offer:

• Deposit and spending limits.
• Reality checks.
• Time-out periods.
• Self-exclusion.
• Information about problem gambling, how and where to seek help as well as contact info to the organizations that support people suffering from gambling addiction.

Being licensed by the UKGC, the Kwiff casino site and its partner brands are also on Gamstop.

Best Kwiff casino sister sites conclusion

I had a great time playing at Kwiff. They've managed to compile one of the best casino collections I've ever seen and the games available were simply astounishing. The Kwiff sister sites' list isn't a big one. Only one other name's on it.

The GRP casino is quite a good option for players looking for casino entertainment, indeed. But right now the only way to check out the sportsbook collection of Eaton Gate Gaming Limited is through the bookie's section offered by Kwiff. Regardless, both sites are simply magnificent, in my opinion, so I would strongly recommend them to anyone looking for top-notch entertainment fully licensed by the UKGC.