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Top 20 Mobile Slot and Free Bonuses UK Apps

Our list of 20 of the best UK mobile sites for casino, and slots includes a lot of honest free spins and initial deposit bonuses. In addition to the key terms, we provide the timeframes for completion, minimum deposits, and winnings caps. 

Best Mobile Slot Sites UK and 20 Slots to Play

  1. 888 Casino App – TOP mobile slot Book of Dead
  2. Rainbow Riches – Rainbow Riches
  3. Mr Q Casino – Big Bass Bonanza
  4. Betfred Casino – Age of the Gods: God of Storms II
  5. Party Casino – Starburst
  6. Jackpot Joy – Double Bubble
  7. WinOmania Casino – Gold Rush
  8. Bet365 – Blue Wizard Megaways, best mobile app and 50 free spins, code: 365GMBLR
  9. Betway Casino – Ted Afterparty
  10. Bally Casino – Secrets of the Phoenix Megaways
  11. Grosvenor Casino – Starburst
  12. PlayOjo – Big Bass Bonanza
  13. Lottoland – Big Bass Bonanza
  14. Coral Casino – Thai Flower
  15. Buzz Casino – Fire Blaze: Blue Wizard Megaways
  16. Moon Games Casino – Fluffy Favourites
  17. Unibet Casino – Aviator
  18. SpinGenie Casino – Thor Slot
  19. Kitty Bingo Casino – Fishin Frenzy: The Big Catch
  20. Simba Games Casino – Book of Dead

Read on to explore the 20 top-rated mobile sites for slots and bonuses they offer. Use codes to get started.

888 Casino and Slots – 88 no-deposit free spins

Once registered at 888 Casino, you can claim 88 no-deposit free spins, each valued at 10p. Receive 60 free spins on the first day, 18 the following, and ten on the final day. You can play them on incredible titles like Book of Scrolls, Sizzling Hot Jokers, and Irish Riches Extreme Reels. Wager the free spin winnings 10x within 90 days with a max winnings cap of £100. 888 Casino is a top mobile slot site, allowing you to enjoy these games on the go.

Rainbow Riches Slots – 30 free spins or £50 bingo bonus

Mobile-firndly slot site Rainbow Riches, part of Gamesys Group, offers you two welcome bonus options. Both require a minimum £10 deposit and 1x play-through on any game. Choose from 30 free spins on the top slot Rainbow Riches or up to £50 in bingo bonus. You can play on top jackpot titles from Blueprint Gaming like Diamond Mine Jackpot King and the Gamesys exclusive Double Bubble Jackpot. Access these games through their app for slots for a seamless mobile experience.

Mr Q Casino – 20 wager free spins

Make your first deposit of £10 at Mr Q casino and receive 20 free spins on the Big Bass Splash Slot valued at 10p per spin. You have 48 hours to use them; they have no wagering or winnings cap. Enjoy other slots from top software developers like Play’n GO with titles like Reactoonz and Rise of Olympus. Mr Q Casino is known as one of the best gambling site slots UK options, especially for mobile play.

Betfred Casino – up to 200 wager free spins

You can claim up to 200 free spins once you have opted in and staked £10 on any slots at Betfred. Take your pick from 50 free spins on Age of the Gods valued at 20p, 100 spins on Better Wilds at a value of 10p, or 200 spins at 5p on Age of the Gods: God of Storms II, credited within 48 hours and no wagering required. Betfred Casino is ideal for mobile slot gamblers, offering a range of top 20 and more mobile slots.

Party Casino – 50 wager free spins

When you join Party Casino, a new UK mobile slot application, deposit and play £10 on any slots, and you’ll receive 50 free spins on Fireball Frenzy, Pig Banker Three Little Piggies, Lock O’ the Irish, or Breaking Banks with no wagering. Use them within seven days. Party Casino is one of the leading mobile slot sites, providing a smooth gaming experience on all devices.

Jackpot Joy – £50 bingo bonus or 30 free spins

At Jackpot Joy, deposit and wager £10 on any game and claim a £50 bingo bonus or 30 free spins on Jackpot Joy’s exclusive Double Bubble slot. You have 30 days to use the bonus with no wagering. If you enjoy bingo and slots, you can play some exceptional Slingo games, a combination of both, like Red Hot Slingo and Book of Slingo here. Jackpot Joy is a top choice for mobile slot enthusiasts in the UK.

WinOmania Casino – 100 Free Spins and 100% deposit match

At WinOmania, you can receive a 100% bonus of up to £100 with a minimum £10 deposit and 100 free spins. The free spins are split into 25 free spins across four top slots: Gold Rush, Cleopatra, Wild Eagle, and Scratch King, using the bonus code “WINO100.” You must wager the bonus funds 40x within 30 days and 40x for free spins within seven days. Bonus funds must be used on Spinoro non-jackpot games like Alladin’s Treasure or Fortune Wheel with a max bet of £2. WinOmania is an excellent mobile slot site with a wide range of games.

Bet365 UK – Get 50 wager free spins on top slot games

Deposit and stake £10 at Bet365 Games on the eligible games, which excludes live dealer titles. Once you complete the wagering within seven days, your 50-wager free spins will be available to claim by clicking the free spins icon on the top left of your mobile screen. Play them on some excellent slot titles like Blue Wizard Megaways, Big Circus!, Legacy of the Tiger, Joker Rush, and more at 10p per spin. Bet365 is a leading gambling site for slots in the UK.

Betway Casino – 100% bonus up to £50

With a minimum deposit of £10 at Betway, you can get up to £50 in bonus funds. You must claim your bonus funds within seven days of registration. Wager the bonus funds 50x on slots. You will find lots of new slots you can use at Betway, like Ted Afterparty and 9 Pots of Gold Land and Win. Betway Casino is one of the top 20 mobile slots sites for UK real money depositors, offering a wide range of games.

Bally Casino – 30 free spins

Create your account at Bally Casino, make a minimum £10 deposit and wager it once on any game. Receive 30 free spins on the Secrets of the Phoenix Megaways slot at 20p per spin. There is no wagering; you have 30 days to use the spins. Afterwards, enjoy the live casino action from Evolution Gaming’s thrilling game show titles like Monopoly Big Baller and Crazy Time. Bally Casino is a great new option for mobile slot players looking for good payouts and fast withdrawal gambling UK apps. You may also like these new sites.

Grosvenor Casino and Mobile Slots UK – 150% bonus up to £30

Joining Grosvenor Casino on mobile entitles you to instant membership at their land-based casinos and online—deposit £20 to receive £30 in bonus funds. Wager the bonus 30x within 30 days on the allowed games, with a maximum cashout of £2,000. The games you can use it on include NetEnt’s iconic Starburst, Sugar Rush or Live One Blackjack. Grosvenor Casino is a top pick for UK players seeking the best mobile slot sites.

PlayOjo – 50 wager free spins

When you join PlayOjo and deposit £10, you can claim 50 free spins on Big Bass Bonanza worth 10p each. There is no wagering, and free spins expire within 24 hours. Other top games on this site include Pragmatic Play’s Sweet Bonanza and Sugar Rush. PlayOjo is renowned for its mobile slot offerings, making it a favourite among UK players.

Lottoland – up to 200 wager free spins

Deposit and stake £20 at Lottoland to get 100 free spins, £30 for 150 free spins, and £50 for 200 free spins, all on the Big Bass Bonanza slot, worth 10p and wager-free and valid for 30 days. As their name suggests, you can buy lottery tickets for over 25 lotteries at Lottoland, such as Powerball or the Irish Lotto. Lottoland is a top mobile slot site with an extensive range of games and lotteries.

Coral Games App – £50 casino bonus

Deposit £10 and wager £10 on the selected games with Coral, and you will receive a £50 welcome bonus with 40x wagering and a 14-day expiry. The allowed games for wagering include Thai Flower, Adventures Beyond Wonderland Live Dealer and Fluffy Favourites. Coral Casino is a leading gambling site for slots in the UK, especially for mobile play.

Buzz Casino – £20 bonus

Depositing and wagering £10 at Buzz Casino gives you a £20 bonus on Fire Blaze: Blue Wizard Megaways. You must wager the bonus 20x and can choose a spin size up to a maximum of 50p. Enjoy Pragmatic Play tournaments on top slot options, such as Sweet Bonanza 1000 and The Dog House Megaways. Buzz Casino is one of the best mobile slot sites, offering a wide range of games and promotions.

Moon Games Casino – up to 500 free spins

Deposit a minimum of £10 at Moon Games to get a spin of a wheel with a minimum of 100, but up to 500 free spins on Fluffy Favourites. Wagering is 35x, and it has a winnings cap of £100. Enjoy some excellent slot titles at Moon Games, like Immortal Romance and Action Bank. Moon Games is a top mobile slot site with a diverse selection of games.

Unibet App and Mobile Casino – Get App and £40 bonus

If you deposit £10 at Unibet, you will receive a 400% £40 bonus. You must wager the bonus funds 50x within 30 days. You can use most of the games for wagering, including some unique Crash games like Aviator and Fly X. Unibet Casino is a top choice for mobile slot players in the UK.

SpinGenie Casino – 108 free spins

A deposit at SpinGenie of at least £10 gets you 108 free spins on the Thor Slot with a game value of 10p per spin. Wager any winnings 60x within 30 days. Slots include top titles to wager on, including Dynamite Riches Megaways and Moon Princess 100. SpinGenie is a leading mobile slot site offering top UK players great games and promotions.

Kitty Bingo Casino – £20 bonus and 25 free spins

On a deposit of £10 at Kitty Bingo, you can claim a £20 bingo bonus and 25 free spins on Fishin Frenzy: The Big Catch spin size 10p. Wager bingo bonus 3x and free spin winnings 25x with a maximum cashout of 5x the bonus in seven days. Use some hidden gem titles like Cash Patrol or Taco Brothers for wagering. Kitty Bingo is a top mobile slot site in the UK.

Simba Games Casino – 50 free spins

With a £10 deposit at Simba Games, you can claim 50 free spins on the popular Book of Dead slot valued at 10p each. Wager free spin winnings 60x within 30 days. Besides slots, you can play some entertaining video poker titles like Deuces Wild and Video Poker First Person. Simba Games is a great mobile slot site for UK players.

Slot Sites
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  • Bet365
    5.0 rating based on 1 rating
    Bet365 Casino: Stake £10, Get 50 Bonus Spins. Promo Code “365GMBLR”
    18+, GambleAware.org.

    The Bet365 sign up code is 365GMBLR . New customers only. Min deposit £10. Bet Credits available for use upon settlement of bets to value of qualifying deposit. Min odds, bet and payment method exclusions apply. Returns exclude Bet Credits stake. Time limits and T&Cs apply. Registration Required. The bonus code 365GMBLR can be used during registration, but does not change the offer amount in any way.

    Read Bet365 Review
    365GMBLR
  • Betfred
    5.0 rating based on 1 rating
    Betfred Casino Offer: Stake £10, Get 200 Wager-Free Spins
    18+, GambleAware.org.

    New customers only. Opt In required. £/€10 min stake on Casino slots within 30 days of registration. Max bonus 200 Free Spins on selected games credited within 48 hours. Free Spins expire after 7 days. iOS app restrictions may apply. Email/SMS validation may apply. Not available in NI. Full T&Cs apply.

    Read Betfred Review
  • 10bet
    4.9 rating based on 1 rating
    10bet Casino Offer: 50 % of up to £250 Bonus
    18+, GambleAware.org.

    Use code CASINO upon deposit (no Skrill/Neteller); Wager bonus 50x to release bonus winnings; Valid 30 days; Stake contribution and payment method exclusions apply; T&C apply

    Read 10bet Review
    CASINO
  • Buzz Casino
    5.0 rating based on 1 rating
    New Buzz Casino: Get 200 Free Spins Bonus
    18+, GambleAware.org.

    Great new casino. New players only. Deposit & stake £10 on slots get 200 x 10p Fire Blaze™ Blue Wizard Megaways™ spins (x20 WR). Full T&Cs apply.

    Read Buzz Casino Review
  • Queen Play Casino
    4.5 rating based on 1 rating
    Queen Play Casino Bonus: £200 + 100 Free Spins
    18+, GambleAware.org.

    New depositing players only. Use promo code BGQUEEN. Min. deposit £10. Max. bonus varies per deposit (see below). Welcome package includes 3 deposit bonuses as follows: First Deposit: 100% up to £50 + 20 Spins on Starburst *Min. Deposit £10 Second Deposit: 50% up to £75 *Min. Deposit £20 Third Deposit: 50% up to £75 *Min. Deposit £20 After the first deposit made, customers will get + 20 Spin for the next 4 days: 1st day after First Deposit: 20 Spins of Finn and the Swirly Spin 2nd day after First Deposit: 20 Spins of Book of Dead 3rd day after First Deposit: 20 Spins of VIP Black 4th day after First Deposit: 20 Spins of Aloha! Cluster Pays Winnings won with spins that require a deposit, have to be wagered 35x. Bonuses that require a deposit, have to be wagered 35x.

    Read Queen Play Casino Review
    BGQUEEN
  • Mr Play
    4.9 rating based on 1 rating
    Mr Play Casino Bonus: Get 100 Free Spins + £200 Deposit Bonus
    18+, GambleAware.org.

    Only UK players. After first deposit made, customers will get + 20 Spin for the next 4 days: 1st day after First Deposit: 20 Spins of Finn and the Swirly Spin 2nd day after First Deposit: 20 Spins of Book of Dead 3rd day after First Deposit: 20 Spins of VIP Black 4th day after First Deposit: 20 Spins of Aloha! Cluster Pays Winnings won with spins that require deposit, have to be wagered 35x. Bonuses that require deposit, have to be wagered 35x.

    Read Mr Play Review
    BGPLAY

Pros and Cons of Mobile Slot Free Bonuses 

Lower-risk slot play: Online casinos offer free spins and deposit bonuses, lowering the risk of playing slots. 

Top slots: Enjoy iconic slot games like Starburst and Book of Dead from your mobile wherever you go. 

Minimal deposits: The minimum deposit at most mobile casinos is £10. 

Wagering: Some offers have wagering requirements before you can withdraw any winnings from 10x to 60x. 

Specific Slots: You have to play the slots allocated with free spins bonuses. 

Use our handy comparison table below, which includes the key details of each offer, to help you decide which is the best mobile casino for you.  

Best Apps and Mobile Slots With Free Bonuses for UK

Apps UKCasino Bonus Mobile-friendly slots
Bet365 100 FS Blue Wizard Megaways, Fire Joker and more 
Rainbow Riches 30 FS/£50 bingo bonus Rainbow Riches 
Mr Q 20 FS Big Bass Splash 
Betfred  200 FS Age of the Gods: God of Storms II 
Party Casino 50 FS Fireball Frenzy, Breaking Banks and more 
Jackpot Joy 30 FS/£50 bingo bonus Double Bubble 
Winomania 100% Bonus and 100 FS Gold Rush, Cleopatra, Wild Eagle, and Scratch King 
888 Casino 88 free spins Book of Scrolls, Sizzling Hot Jokers and Irish Riches Extreme Reels 
Betway 100% Bonus Variety 
Bally Casino 30 FS Secrets of the Phoenix Megaways 
Grosvenor 150% Bonus Starburst, Sugar Rush 
PlayOjo 50 FS Big Bass Bonanza  
Lottoland Up to 200 FS Big Bass Bonanza  
Coral Casino 300% Bonus Thai Flower, Fluffy Favourites and more 
Buzz Casino Up to 200 FS Fire Blaze: Blue Wizard Megaways 
Moon Games Up to 500 FS Fluffy Favourites 
Unibet 400% Bonus Variety 
SpinGenie 108 free spins Thor 
Kitty Bingo £20 Bingo Bonus & 25 free spins Fishin Frenzy: The Big Catch 
Simba Games 50 FS Book of Dead 

Our Verdict: The Best Mobile Slot and App for the UK?

We have ranked 888 Casino and bet365 as the best mobile apps and bonus offers in the UK. You don’t have to deposit, and with only a 10x wagering requirement, it’s an excellent offer. Besides that, you can claim free spins and bonus funds for deposits as low as £10 at many top-rated UK Mobile Casinos with no wagering attached

The Best Mobile Slot to Play and Top Casino App for UK Players

Our TOP Mobile Slot: Book of Dead

  • Provider: Play’n GO
  • RTP: 96.21%
  • Description: Book of Dead is a highly popular mobile slot known for its classic gameplay, high payout RTP, and significant win potential. The game features free spins, expanding symbols, and a popular among British players Ancient Egyptian slot theme.

Top Casino App: Bet365

  • Bonus: £50 no-wager free bonus spins
  • Wagering Requirement: None (for the free spins bonus)
  • Example of Payout:
    • If you use your free spins on a high RTP slot like Blue Wizard Megaways (RTP 96.51%), you can maximise your potential winnings.
    • Suppose you win £50 from the free spins with no wagering requirements. This means you can withdraw the entire £50 without having to wager it multiple times, making it an excellent value for players.

Why Bet365 Stands Out:

  • Generous Bonus: Bet365 offers 50 no-wager free spins for new players, allowing you to keep all your winnings from the top 20 slots without any wagering requirements.
  • High RTP Slots: Bet365 hosts a variety of high RTP slots, ensuring you have a better chance of winning. Some notable high RTP slots available on Bet365 include:
    • Age of the Gods: God of Storms II – RTP 96.14%
    • Joker Rush – RTP 96.07%
    • Legacy of the Tiger – RTP 96.20%

How to Claim the Bet365 Bonus on Slots:

  1. Download the bet365 Games casino app by visiting their site. Sign Up: Create a new account on the Bet365 mobile slot app.
  2. Deposit: Make a minimum deposit of £10.
  3. Play: Stake £10 on eligible games.
  4. Claim Spins: Your 50 free spins will be credited to your account. Use them on high RTP slots to maximise your winnings.

Potential Winnings: If you win £50 from the free spins on a slot like Blue Wizard Megaways, you can withdraw the entire amount immediately, as there are no wagering requirements.

Our Opinion from BritishGambler.co.uk:

At BritishGambler.co.uk, we believe that Bet365 Games offers one of the best mobile slot experiences for UK players. The combination of a generous no-wager free spins bonus and a selection of high RTP slots provides excellent value and a higher chance of winning. We highly recommend Bet365 casino app for its outstanding bonuses and top-quality mobile gaming.

For UK players looking for the best mobile slot and top casino app, Bet365 stands out with its generous no-wager free spins bonus and a great selection of high RTP slots like Book of Dead.

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