Review Kwiff:


Bet £10 Get £30 Surprise Bet

New customers & 18+ only. Min. deposit of £10. Qualifying real money bet of £10. Min odds greater than or equal to 1.5 required. E/W bets excluded. Offer awarded immediately but could be issued the next working day in exceptional circumstances such as technical fault. Additional T&Cs apply.

How To Claim The Kwiff Sign-Up Offer

Del Pugh
Del Pugh - Betting Offers Expert

To claim this Kwiff welcome bonus, new customers can register, deposit £5 or more and place ANY bet on sports to claim the bonus.

How to claim the Kwiff sign-up offer:

  1. Click the Claim button and sign up to Kwiff
  2. Place a minimum £10 sports bet at odds of 1/2 (1.5) or higher
  3. Get a Surprise £30 free bet

*Subject to terms and conditions*

Kwiff offers one of the more interesting welcome bonuses, with its surprise free bet, however, if you want more control over your free bets, why not check out our comprehensive betting offers list for further options?

Kwiff Overview

Kwiff was founded in 2015 and the brand's unique selling point is the 'Supercharge' feature which means that any bet you place can be 'Kwiffed'. This is the equivalent of enhanced odds, but they are given out randomly after you place wagers. Initially, Kwiff was solely mobile-focused, but users can now use the betting site on desktop, too.

Kwiff score

  • 'Supercharge' your bets + get great odds
  • Well-optimised for mobile
  • Great sign-up offer
  • Limited betting markets
  • No bet builder
Bonus offer
Betting variety
Mobile experience
Payment options
Betting experience
Kwiff quick facts
Game TypesSports betting, Casino
Deposit methodsVisa, MasterCard, Paypal, ecoPayz, Trustly
Withdrawal methodsVisa, MasterCard, ecoPayz, Paypal, Trustly
Odds providerKwiff
Betting functionsLive betting, cash out
Casino game typesSlots, table games, video poker, virtual sports
Casino providerMicrogaming, Play’n GO, NetEnt and Yggdrasil
AppsiPhone, Android
SupportLive chat, email
OwnerKwiff Ltd
Founded Year2015
HeadquarterLondon, UK
Bonus CodeNo code

Kwiff review - Let's Get Kwiffed!

Kwiff is a funny name for a betting company, isn't it? So much so that when you talk about it with people, they think that half of the things you say are euphemisms.

Of course, in truth, there is nothing untoward about being 'kwiffed'. It's actually just a very cool feature on a betting site that is unique, to say the least.

I actually like the name Kwiff. It's certainly more interesting than just taking a random word or sequence of numbers and sticking 'bet' on the end of it.

And like I said, getting 'kwiffed' is fantastic.

But does it happen enough?

That's the issue, really. The unique selling point of this betting site is the fact that your odds can be 'supercharged' at any time, and when they aren't (it doesn't happen to all bets) you're not left with much else.

Yes, there are some promotions, and a decent selection of sports to bet on, but it's quite bare in comparison to some of the other top online bookmakers in the UK.

The excitement of the possibility of having your odds supercharged is what keeps you coming back for more.

If you like that extra buzz of chasing the bigger odds and can stomach the possibility of no boost whatsoever and therefore ending up with odds that in some cases aren't as good as you could get elsewhere, then you should consider registering with Kwiff.

Kwiff supercharge bet

When you do get a supercharge, they can be really generous.

It's not only your bets that can be supercharged. In 2020, Kwiff became began to offer an 'industry-first' supercharged cash-out service.

Now that's what I call innovation

This means that when you cash out one of your bets, you have the opportunity for your returns to be supercharged in the same way that your odds can be supercharged when you place a bet.

The feature was rolled out after Kwiff took on board some feedback from customers, and it adds to the randomness of the Kwiff experience which has helped the firm become popular.

Manage your expectations, though, because just like with supercharged bets, you don't get lucky every time, and in fact, you might end up with no boost more often than not.

Anything else worth writing home about?

Not really. If you strip away the kwiffing and supercharging or whatever you want to call it, it's a pretty bland betting site.

But, to be fair, that's all it needs to be. Kwiff knows its USP and they have no reason to confuse matters by introducing other complex tools.

Admittedly, it would be nice to see further payment options added besides debit cards, PayPal, ecoPayz and open banking, but this is not too much of an issue since most punters are happy to use PayPal.

Perhaps the addition of a bet builder or Asian handicap would be nice for the football offering too, or at least some more player props.

Choose Kwiff for their

  • Supercharged odds feature
  • Broad selection of promotions
  • Supercharged cash out
  • Enjoyable live casino games

Find another bookie if you don't like

  • Not many markets to choose from
  • Few payment options

Kwiff Rating - ★ ★ ★ ★ ★ ★ ★ ★ 8/10

Kwiff betting site macbook

Kwiff has a solid base even without the odds boosts, but it wouldn't be anywhere near as interesting.

How often do you get kwiffed and how big are the boosts?

Ben Smith
Ben Smith - Team Leader

My experience - for what it's worth - was that my odds got supercharged on my first bet on Kwiff, and then only one of my next five bets received the same treatment but that one was a huge odds boost.

Many of my colleagues have reported similar stories. They each placed a handful of bets, and most said that one or two of them were 'kwiffed'.

Not only is there a fair deal of variation when it comes to how many of your bets get supercharged, but there is also a wide range of possible outcomes as far as the size of the boost is concerned.

You're probably looking at less than half of your bets being kwiffed, which is fair enough considering that Kwiff is a business and cannot afford to be giving out crazy boosts on every bet.

But, at the same time, you can realistically expect to average better than one supercharge for every five wagers you place.

Kwiff sign up offer

Bet £10 Get £30 Surprise Bet

New customers & 18+ only. Min. deposit of £10. Qualifying real money bet of £10. Min odds greater than or equal to 1.5 required. E/W bets excluded. Offer awarded immediately but could be issued the next working day in exceptional circumstances such as technical fault. Additional T&Cs apply.

New Kwiff customers can claim the betting site's sign-up offer which is worth £30 as a surprise bet.

How to claim the Kwiff sign up offer

  1. Click 'Claim' and register with Kwiff.
  2. Place a minimum £10 bet at odds of 1/2+.
  3. Get a £30 surprise bet.

Kwiff sign up offer T&Cs

  • The Promotion operates as a £/€30 Surprise Bet when you place a bet of at least £/€10 on any market with odds greater than or equal to 1.50 as your first bet.
  • The Promotion runs from 18/07/2023 12:00 (UTC) until 31/12/2024 12:00 (UTC) (the “Promotional Period”).
  • The Promotion is only valid to:
    (a) new customers;
    (b) customers aged 18 years or over.
  • To qualify for the Promotion, participant must deposit and place a £/€10 bet as their first bet on any market (excluding each way) in the sportsbook with odds greater than or equal to 1.50.
  • Only original odds count toward the promotion. Supercharged odds do not count towards the promotion.
  • An accumulation of smaller stakes will not count.
  • Cashed out bets do not count towards this promotion.
  • Only available once per customer.
  • Rewards will be credited to qualifying participants within 48 after placing the qualifying bet.
  • Potential winnings from the Surprise Bet are paid in withdrawable cash, excluding the stake.
  • This offer cannot be used in conjunction with any other offer.

For full Kwiff sign up offer T&Cs, visit Kwiff.

The Basics

What is Kwiff?

Kwiff is an online betting site and app which launched in 2015. When you place a bet on Kwiff, your odds could be supercharged (boosted) randomly.

Which bets get Kwiffed?

It's completely random. You'll place some bets and nothing will happen, while others will see your odds increase either by a small margin or a huge amount.

Is there a Kwiff welcome offer?

There is indeed. Kwiff offer a £30 surprise bet to new customers, which you can claim by doing the following:

  1. Register with Kwiff.
  2. Bet £10 at odds of 1/2+.
  3. Receive a £30 surprise bet.

New customers & 18+ only. Min. deposit of £10. Qualifying real money bet of £10. Min odds greater than or equal to 1.5 required. E/W bets excluded. Offer credited within 48 hours. Additional T&Cs apply. Please gamble responsibly.

Does Kwiff offer a cash out function?

Absolutely. Not only do they let you cash out, but your cash out settlements could get supercharged and therefore you might end up with a bigger payout than you were due.

Is there a Kwiff app?

Yes. In fact, when they first launched, you could only bet via the Kwiff app, which is available on both iOS and Android.

Does Kwiff have a refer-a-friend program?

No, the refer-a-friend program has been discontinued.

Does Kwiff have a Loyalty Club?

No, Kwiff used to have a Loyalty Club with free bets as rewards, but that offer has been discontinued.

How to get 'kwiffed'

Register with Kwiff

The first step is to register with Kwiff, which you can do through Bookies Bonuses.

When you click 'Claim' at the top of this page, you'll be taken to the sign-up page where you can also claim the Kwiff sign up offer.

You will then be able to make a deposit and place wagers across a range of sports.

Deposit methods include debit card, PayPal, and bank transfer.

How to get kwiff
Place a bet

Once you're signed up and have money in your account, you can place a wager and try your luck at getting 'kwiffed'.

Available sports include football, horse racing, tennis, cricket, darts, American football, rugby, basketball, snooker, boxing, MMA, and ice hockey.

Both pre-match and in-play bets have the opportunity to get kwiffed, with neither bet type being more likely to result in a supercharge than the other.

The standard odds are generally lower than what you might find on other betting sites because Kwiff need to offset their losses from supercharged bets that customers win.

How to get kwiffed 1
Get kwiffed if you're lucky!

Your fate is now in Kwiff's hands.

There are promotions you can claim where there are guaranteed supercharges, but in all other cases, they are completely random.

If your odds have not been supercharged, the bet will simply appear in your account with the standard odds.

But, if you have been lucky enough to get kwiffed, there will be a slow reveal of the new odds, which is very exciting!

You will first be told that you've been kwiffed - as the screenshot shows - and then it will show your supercharged odds which can be anything from a minor increase to a huge enhancement.

How to get kwiffed 2
Wait for your bet to settle

Once you have your supercharged odds, you can cheer on your chosen athlete/team and hope to secure your payout.

There is also the option to cash out, and you can even have your cash out settlement supercharged thanks to the new feature that was introduced by Kwiff in 2020.

Go to the 'cash out' section on the website or app to see your active slips, and you will see the kwiffable cash out offer.

If your initial odds got kwiffed, it would perhaps defeat the object if you were to cash out straight away, because who knows when you might get kwiffed again?

How to get kwiffed 3

Kwiff betting

Kwiff has come a long way since the early days of very basic markets across just a sprinkling of sports, but even to this day, despite significant improvements, it's still a very straightforward sportsbook that is very reliant on the supercharge feature.

And that's not a complaint. It stands out from the crowd and is a more meaningful, distinctive marketing tool than simply having a few extra markets.

There are only around a dozen sports on Kwiff in total, so that's less than half of what you might see on the likes of 888sport or Betway.

But if you only really want to wager on the main sports, you won't exactly miss cycling, volleyball, table tennis, and other niche events.

Kwiff football betting

When you enter the football section of Kwiff, you'll be shown the in-play markets straight away, and the depth of leagues is quite impressive.

But less spectacular is the selection of markets that are on offer in-play, especially in lesser-known competitions.

By entering the 'Competitions' section, you'll be able to go in the Premier League and other top events, and the fixtures in there have far more available bet types than the more obscure stuff.

But there is still no Asian handicap, bet builder, or other popular, more advanced markets.

Kwiff football betting

The Kwiff football betting selection is fine but far from jaw-dropping.

Kwiff horse racing betting

Horse racing is an important category to master if you are targeting punters in the UK, and Kwiff do a good job of this with a broad selection of domestic racing as well as some international meetings.

What is disappointing is the lack of alternative markets outside of standard win and each-way options.

But what Kwiff lack in bet types they make up for in form, statistics, and good information on each horse.

And, of course, there is the possibility to get your odds supercharged, which, if you're doing accumulators, can result in massive boosts.

Kwiff live betting

There is a dedicated in-play tab on the Kwiff site and also on the Kwiff app on mobile, which is probably the optimal device on which to place live wagers.

Nice-looking, Kwiff-branded graphics are used to display what is happening in each event, so you can see for example the flow of the play in football or the way a rally is going in tennis.

It's nothing too flashy, but a solid overall live betting selection which is made even better by the 'industry-first' supercharged cash out tool.

Kwiff cash out - supercharged! ⚡

Kwiff's cash out function is like no other. When you accept a settlement on a bet, the amount you receive could randomly get supercharged and you may end up with an even bigger settlement.

This does not happen on every cash out - in fact it's more likely that it happens only occasionally - but this still adds another layer to the overall betting offering.

Hopefully more unique features like this will surface on Kwiff in the coming months and years.


"Cashing out generally isn't for me, as I'm the deluded type that thinks every bet I place will come in eventually, but I'm far more likely to cash out on Kwiff as opposed to any other betting site. There is literally no other bookie that gives me the opportunity to receive a bigger sum than I'm expecting. Of course, it doesn't happen all of the time, but it's the thrill of the chase, right?"

Kwiff App

Kwiff used to be mobile-only, and even though they now have a desktop site as well, it remains the case that the Kwiff app is the best way to use this online bookmaker.

The features are all the same regardless of what device you are using, but the navigation and user interface are much cleaner on the app.

On the App Store, Kwiff has a 4.5/5 rating based on 7.5k ratings, so it is clearly a popular app among users.

Having only been available on iOS until 2017, Kwiff is now on the Google Play Store, too.

What we like about the Kwiff app

  • Available on both iOS and Android
  • Slick supercharged odds visuals
  • Make quick deposits and withdrawals
  • Face ID login
  • Cash out tab with supercharge possibilities
  • Nice in-play graphics
  • Live chat customer support in the app
  • Access promotions without leaving the app
  • Trending bets pop-ups
  • Event calendar

What we don't like about the Kwiff app

  • You can't play casino games on the app
  • Odds layout can be clunky
  • Prone to the odd glitch
Kwiff app betting

The Kwiff app provides a better overall experience than the desktop site.

Kwiff Apple app

The Kwiff iOS app is free to download from the App Store and thanks to regular updates that take place multiple times throughout the year, Kwiff deliver a quality app for those with an iPhone.

It is only available in the English language.

How to download the Kwiff Apple app

Ben Smith
Ben Smith - Team Leader

Kwiff Android app

The Kwiff app has been available on Android since 2017 and has gone from strength to strength ever since.

You can find Kwiff on Google Play and download it for free onto your device if you are aged 18 or above.

How to download the Kwiff Android app

Ben Smith
Ben Smith - Team Leader

Kwiff promotions

The 'supercharge' features gets all the glory, but there are some other good promotions on the Kwiff site that are worth tucking into.

Some pop up spontaneously, and many of them actually combine sports betting and casino, so you could place a sports wager and get free spins as a bonus.

And then, there are some more evergreen promotions that you can expect to see on Kwiff at any given time.

Kwiff Surprise Bet

A unique type of promotion on Kwiff is the 'Surprise Bet' which is similar to a free bet, but rather than you choosing what to wager on, it is generated by their algorithm and added to the 'cash out' section of your app once complete.

Kwiff surprise bet

A surprise bet is basically a free bet but you don't pick what you bet on.

The odds on your surprise bet can be kwiffed, and you get your returns in cash with the stake not included.

It's a little bit weird that Kwiff choose your bet for you, but at least it's something different and you have someone else to blame if you lose!

Kwiff payment methods (or lack thereof!)

There are not a whole lot of payment options on Kwiff. You're pretty much stuck with either your debit card, PayPal or ecoPayz unless you want to be doing bank transfers.

Luckily, most people in the UK are fine with PayPal, but it's shame to see Skrill and Neteller omitted at this point.

Kwiff UK banking


  • Visa
  • MasterCard
  • PayPal
  • AstroPay
  • ecoPayz
  • Open banking


  • Visa
  • MasterCard
  • PayPal
  • AstroPay
  • ecoPays
  • Open banking

Visit Kwiff for full details on banking options.

Kwiff Limits on Payments and Withdrawals

The minimum deposit on Kwiff is £5, but if you want to claim the Kwiff sign up offer, you'll need to deposit £10.

For withdrawals, you can take out as little as £10, and it takes 3-5 business days for the funds to hit your account.

The maximum stake on any bet varies per sport, but Kwiff can limit payouts to £50,000 per day per customer.

Kwiff Verification

Just like any other betting site, you'll need to have your age and identity verified as per the UK Gambling Commission conditions.

Most players will be verified automatically, but if it cannot be done electronically during registration, you might need to submit copies of some documentation.

You may need to send Kwiff:

  • Photographic ID:
    • Passport
    • Driving licence/National ID
    • Military ID
  • Proof of address:
    • Official monthly utility bill
    • Tax bill
    • Formal letter from bank, council, NHS etc.

Kwiff Casino

Wager £20 for 5 Days and Get 200 Free Spins

18+ New players only. Min. £20 deposit. 40 Spins on Book of Dead per day after each qualifying wager in first 5 days. Max. withdrawable winning £250. Ewallets excluded. Full T&Cs apply. Please gamble responsibly.

The Kwiff Casino does not have a special feature like the sportsbook does, but it is still a perfectly good offering and a fine complement to the brand's main course.

You can choose from a breadth of slot games, with popular titles like Starburst, Gonzo's Quest, Book of Dead, and many more on tap.

Standard versions of blackjack, roulette, and poker are available, as well as alternative types of these table games, some of which are exclusive to Kwiff

Kwiff casino tournament

The Kwiff Casino presents various opportunities to win cash prizes.

There is also a Kwiff Live Casino with more variations of the most popular table games, plus game shows, live slots, and plenty of other fun stuff to enjoy.

In the main 'Promotions' tab on Kwiff, there is a Casino Promotions section, and here you can find cash drops, free spins, and things of that nature.

It's a shame you can't play casino games on the Kwiff app, but at least you can still play on the mobile site.

Kwiff Casino Welcome Bonus

The new Kwiff Casino bonus allows players to claim 200 free spins on the popular title, Book of Dead.

How to Claim the Kwiff Casino Welcome Bonus

  1. Click 'Claim' and register with Kwiff Casino.
  2. Wager £20 on slots on each of the five days after your first deposit.
  3. Get 40 free spins each day you meet the wagering requirements (total 200 free spins).

Kwiff Casino Welcome Bonus T&Cs

  • The Promotion runs from 29/12/2021 12:00 (UTC) until 31/12/2022 12:00 (UTC) (the “Promotional Period”).
  • The Promotion is only valid to:
    • (a) New customers who register an account during the promotional period;
    • (b) Customer who do not deposit with e-wallets or virtual cards;
    • (c) Customers aged 18 years or over and their accounts are not restricted due to any reason outlined in our terms.
  • To qualify for the Casino Welcome Bonus, you must deposit and wager at least £20 daily on any slot game in kwiff casino within the first 5 days of your first deposit made. The maximum daily amount of Free Spins granted under this promotion is 40, not exceeding a combined total of 200 if all conditions are met.
  • Free spins will be awarded immediately but could be issued the next working day in exceptional circumstances such as technical fault.
  • Once the qualifying requirements under point A.4 are completed the 40 Free Spins will be awarded on the game ‘Book of Dead’. The winnings from the Free Spins hold no wagering requirements but have maximum withdrawable winnings of £250 in total free spin play. Winnings from free spins over £250 are not withdrawable and will be forfeited.
  • The value of the free spin is £0.10 per spin.
  • Any winnings will be transferred to your cash balance upon completion of the Free Spins.
  • All winnings from the Free Spins are cash and can be withdrawn without restrictions if all terms are met but the total Free Spins winnings withdrawable are capped at £250.

For full T&Cs, visit Kwiff.

Kwiff review

Kwiff casinobonus

Bet £10 Get £30 Surprise Bet

New customers & 18+ only. Min. deposit of £10. Qualifying real money bet of £10. Min odds greater than or equal to 1.5 required. E/W bets excluded. Offer awarded immediately but could be issued the next working day in exceptional circumstances such as technical fault. Additional T&Cs apply.