Casino ProviderBonus OfferReview
Leo Vegas Casino
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FullT&Cs apply. Extra spins - no deposit required & new players only. Claim within 3 days of registration & 3 day expiry. Extra spins worth £0.10 each on Book of Dead, winnings paid as cash. Deposit offers available across any two deposits. Both expire 7 days after registration & have 7 days to wager once claimed. Deposit £10, £25 or £50+ & wager 35x for a cash reward. Only cash stakes qualify & wagering contributions vary. 5 extra spins on Book of Dead with each qualifying deposit, 3 day expiry.18+ BeGambleAware.org. Full Terms Apply

888 Casino
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200% Welcome Bonus up to £500

1st deposit only • £20 min deposit • Valid for selected games • Bonus wins capped at £500 • 50x wagering -req. vary by game • Bonus expires in 21 days • Withdrawal terms & full T&Cs apply. 18+, New players only. BeGambleAware.org

Rizk Casino
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Grosvenor Casino
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Deposit £20, Play with £50 – Only 5x Wagering

18+ New Customers Only. First deposit only. Min £20 deposit. 5x wagering. Some games have different wagering distributions. Some games exclude bonus play. T&C Apply. Gamble responsibly. www.begambleaware.org

Coral Casino
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£50 Welcome Bonus

18+. New customers only. Min spend £10 on qualifying games. Certain deposit types excluded. £50 Bonus on selected games subject to 40x wager req. Must accept within 7 days, valid for 30 days. Player restrictions and T&Cs apply.

Mansion Casino
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100% Welcome Bonus up to £200

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Genting Casino
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£200 Welcome Bonus

New Customers. 35x real money cash wagering of initial deposit amount (£20-£200) on qualifying slot games completed within 30 days unlocks equivalent cash bonus (% game weightings apply). 15 days to accept/opt in. Full T&C’s Below.

All British Casino
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100% Welcome Bonus up to £100 + 10% Cashback

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No Bonus Casino
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Welcome Package 100 Spins + up to £50 Bonus

New Players only. 18+. Min First Deposit £10. Min Second and Third deposit: 20. Wagering requirement apply 35x. Offer valid for 72hr. Spins expire after 24hr. 100 spins includes 3 deposits.

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100% Welcome Bonus up to £200 + 25 Extra Spins

18+. New players only. Extra Spins (FS) expire in 14 days. FS wins credited in bonus. FS & bonus valid for selected games only. Bonus wins capped at £500. 30x wagering -req. vary by game- in 90 days. UK only - deposit balance available for withdrawal at any time. General withdrawal restrictions & full T&Cs apply.

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New Casino customers only.Deposit min. £10. Applies to first deposit to Casino only. Max. bonus £100. 20x wagering (game weighting, table coverage and max. bet rules apply) on deposit and bonus to make the bonus balance withdrawable. Time limits and T&Cs apply. 18+. Gamble responsibly. www.begambleaware.org

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Deposit £10, Play with £40 + 100 Spins

New UK&IRL Customers Only. Min Deposit £10 . Deposits made by e-wallets are not valid. Bonus wagering x35 on eligible games. Winnings from bonus capped at £500 . £5 Max Stake On Bonus. Spins available after bonus redeemed/lost. Spins value 0.10p. Opt In required. Full T&C's apply.

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18+. New players only. 1 bonus offer per player. Min. deposit £20. Max. bonus bet is £5. Bonus spins on selected games only and must be used within 72 hours. Bonus funds expire in 30 days, unused bonus funds will be removed. Bonus funds are 100% match up to £500 on your 1st deposit, 25% match up to £1000 on your 2nd deposit, and 50% match up to £500 on your 3rd deposit. Bonus funds are separate to Cash funds, and are subject to 35x wagering the total bonus & cash. Only bonus funds count towards wagering contribution. Terms apply. BeGambleAware.org

Casino Gods Casino
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100% Welcome Bonus up to £100 + 300 Extra Spins

18+ Full T&C's Apply. New players Only. £10 min deposit. £5 max bet using bonus. 40 x wagering applies. Bonus valid for 14 days. 30 Spins on pre-selected games will be credited instantly + then 30 per day for 9 days. Extra Spins valid for 72 hours from credit. Max Extra Spins winnings £100. Skrill + Neteller excluded. Always refer to Bonus Terms - www.begambleaware.org

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Up to £800 Welcome Bonus

18+ New customers only. Opt-in required. 1st deposit bonus 100% up to £200. 2nd deposit bonus 50% up to £200, 3rd deposit bonus 25% up to £200, 4th deposit bonus 25% up to £200. Min deposit £10. 40x wagering, 30 days to complete wagering, game weighting and game restrictions apply. Max Bet with bonus funds £5. Max withdrawal from bonus funds is £2000. Neteller and Skrill excluded. Eligibility restrictions apply, cash balance can be withdrawn at any time. Full bonus terms Apply. Gamble responsibly. www.begambleaware.org #AD

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100% Welcome Bonus up to £100 + 25 Extra Spins

One bonus offer per player. Min deposit £20. Max bonus bet £5. Offer is a 100% deposit match up bonus to £100 plus 25 bonus spins on Aloha! Cluster Pays. Bonus spins winnings are credited in the form of bonus finds and are capped at £50. Bonus finds are separate to Cash funds and are subject to 35x wagering the total of cash + bonus funds. Only bonus funds count towards wagering contribution. Once claimed, funds must be used within 30 days, spins within 10 days, otherwise any unused shall be removed. 18+, New players only. BeGambleAware.org - Full Terms Apply

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18+. New players only. One bonus offer per player. Minimum deposit £20. Max bonus bet is £5. Bonus spins on selected games only and must be used within 72 hours. Winnings from Bonus spins credited as bonus funds and capped at £100. Bonus funds must be used within 30 days otherwise any unused bonus shall be removed. Bonus funds are 100% match up to £400 on your 1st deposit, 40% match up to £3000 on your 2nd deposit, and 60% match up to £1500 on your 3rd deposit. Bonus funds are separate to Cash funds, and are subject to 35x wagering the total bonus & cash. Only bonus funds contribute towards any wagering requirements. Terms apply. BeGambleAware.org

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18+ New players Only. £10 minimum deposit. 40 x wagering applies. Bonus valid for 14 days. Minimum £5 wager required to activate 300 Extra Spins. 30 Extra Spins will be credited per day for 10 days after qualifying deposit/wager is met. Extra Spins valid for 72 hours from credit. T&C Apply. Gamble responsibly. www.begambleaware.org

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100% Welcome Bonus £1500 + 100 Extra Spins

18+. One bonus offer per player. Minimum deposit £20. Max bonus bet is £5. Bonus spins on selected games only and must be used within 72 hours. Winnings from Bonus spins credited as bonus funds and capped at £100. Bonus funds must be used within 30 days otherwise any unused bonus shall be removed. Bonus funds are 100% match up to £300 on your 1st deposit, 25% match up to £800 on your 2nd deposit, and 50% match up to £400 on your 3rd deposit. Bonus funds are separate to Cash funds, and are subject to 35x wagering the total bonus & cash. Only bonus funds contribute towards any wagering requirements. Terms apply. BeGambleAware.org

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Play £10 & Get 30 Extra Spins

18+ T&C Apply.

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Welcome Bonus Up To $500 + 50 Extra Spins

18+ T&C Apply.

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500 Extra Spins

18+. New players only. One welcome package per player. Max bonus bet £5, Min deposit £20, 1st deposit: get 100 bonus spins, 2nd Deposit: get 75 bonus spins, 3rd deposit: get 125 bonus spins, 4th deposit: get 50 bonus spins, 5th deposit: get 150 bonus spins. All spins are on slot game Book of Dead only. Bonus funds must be used within 30 days and bonus spins within 7 days. Spins winnings credited as bonus. Bonus funds separate to Cash funds, and are subject to 35x wagering and withdrawal requirements. Terms Apply. BeGambleAware.org.

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18+ New Players only. T&C's Apply. Gamble responsibly. www.begambleaware.org

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100% Deposit Bonus up to £300

18+ T&C Apply.

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200% Welcome Bonus up to £500 + 100 Extra Spins

18+ New Players only. T&C's Apply. Gamble responsibly. www.begambleaware.org

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100% Welcome Bonus up to £200 + 100 Extra Spins

18+ Applies to new depositing players. Min deposit £20. Wagering requirements apply 35x. 100 spins require 3 deposits. Full terms & conditions apply. Gamble responsibly. www.begambleaware.org

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30 Extra Spins

18+ New players only. Gamble Responsibly. www.gambleaware.org

NetBet Casino
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Welcome bonus up to 500 Extra Spins on your first deposit

18+ T&C Apply.

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120 Extra Spins on Starburst

18+. New depositors only. UK residents only. Minimum deposit £10. Extra Spins are valid only on Starburst and expire in 7 days. 10x wagering apply. Certain deposit types are exlcuded. Gamble responsibly. www.begambleaware.org

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100% Welcome Bonus up to £100 + 150 Extra Spins!

18+ Full T&C's Apply. New players Only. £10 min deposit. £5 max bet using bonus. 40 x wagering applies. Bonus valid for 14 days. 15 Spins on Gonzo's Quest game will be credited instantly + then 15 per day for 9 days. Extra Spins valid for 72 hours from credit. Max Extra Spins winnings £100. Skrill + Neteller excluded. Always refer to Bonus Terms - www.begambleaware.org

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Valid for new UK players. Min deposit £20. Bonus Spins will be credited instantly. Deposits made via Neteller or Skrill are not eligible for Bonuses. Wagering requirements Bonus: 35x (deposit+bonus). Wagering requirements Bonus Spins: 40x

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50 Extra Spins

18+ Only | | 50 Extra Spins on Book of Dead | Min. deposit is £10. This offer is only available for first time depositors | Also after your First Deposit you may claim an additional 30 Extra Spins by visiting the Kicker Section | Game: Book of Dead | Spin Value: £0.10 | OJO’s Rewards and Game Play policy applies | T&C's Apply

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18+. New players only. Min Deposit £20. Max Bonus bet £5. Winnings from spins capped at £50. 100 Zee spins valid on starburst (first 10 credited immediately upon first deposit; rest credited at 07:00 GMT at 10/day). Spins must be used by 23:59 GMT of the day on which they are credited to player account, any unused shall be removed. Bonus funds must be used within 30 days. Bonus funds are seperate to cash funds, and subject to 35x wagering (bonus + cash). Full terms apply. Begambleaware.org

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1st dep. of £20-£500, max bonus £500 on selected slots; 40x wagering on the sum of deposit & bonus applies. Max convertible 5x bonus amount received. T&Cs Apply 18+.

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100% Welcome Bonus up to £100 + 200 Extra Spins

New customers, Spins: 200 in total with 40 given on first deposit, winnings given as bonus funds, 20x wagering, spins and bonus wagering on Age of the Gods games only. Welcome bonus: £20 min deposit, max bonus £100, wagering 40x, game weighting applies. Betting limits: slots - £5, all other games - 10% bonus amount. T&Cs apply

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£150 Welcome Bonus + 50 Extra Spins

Min deposit £20. Max bonus 1st deposit £50 and 2nd deposit £100. Wagering required. Applies on all bonuses x35. 20 extra spins will be credited on first deposit and 30 extra spins on second deposit. Full T&Cs apply

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100% Welcome Bonus up to £250 + 100 Extra Spins

Min 1st deposit £20. Max bonus £250. Bonus & wins playable on Selected games only. 40xWR. Max convertible to real 5x bonus amount. Bonus valid for 7 days. Extra Spin on the wheel for 10 - 100 spins valid for 24hrs. Spins & wins playable on NetEnt Slots (excl. progressives). 30WR. Max win £20 from wheel spins. T&Cs apply

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100% bonus up to £300 on your first deposit · New Customers Only · Min Deposit £10 · 50x WR · Offer must be accepted within 72 hours. Bonus Valid for 30 Days · Max bet restrictions apply · Bonus can't be withdrawn. Bonus can only be spent on Slot Games · Skrill/Moneybookers and Neteller are not valid for this promo · Real money balance can always be withdrawn. 18+ Begambleaware.org. T&Cs apply

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18+. New players only. 1 bonus offer per player. Min. deposit £20. Max bonus bet £5. Extra spins on selected games only- must be used within 72 hours. Bonus funds expire in 30 days, unused bonus shall be removed. Bonus funds are 100% match up to £500 + 30 extra spins on 1st deposit, 25% match up to £800 + 25 extra spins on 2nd deposit, and 50% match up to £200 + 50 extra spins on 3rd deposit. Bonus funds are separate to Cash funds, and are subject to 40x wagering the total bonus & cash. Only bonus funds count towards wagering contribution. Terms apply. BeGambleAware.org

Vegas Hero Casino
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18+ Full T&C's Apply. New players Only. £10 min deposit. £5 max bet using bonus. 60x (40x referred player) wagering applies. Bonus valid for 14 days. 10 Spins on pre-selected games will be credited instantly + then 10 per day for 4 days. Extra Spins valid for 72 hours from credit. Max Extra Spins winnings £100. Ewallets excluded. www.begambleaware.org

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18+ T&C Apply.

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18+ new players only. Maximum £50 bonus. Minimum deposit: £20. Max bet with active bonus: £2. Wagering requirement 100% match bonus: 30 times sum of deposit + bonus. Winnings from Extra Spins come as cash. Some games may not be played with an active bonus. Games may contribute differently when wagering a bonus. Bonus Winnings capped at £500. www.begambleaware.org Full bonus terms and conditions apply.

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Guide to Playing the Best Slot Game Apps

What’s the best way to play exciting casino slots from anywhere you are, at any time you feel like spinning the reels? You’ve guessed it: mobile slot apps let you take the most exciting online slots in the UK with you on your mobile device, so you are never too far away from spinning the reels on your way to winning prizes!

Thanks to the ever-increasing popularity and innovation of smartphones and tablets, it’s now possible to access the best slot apps for real money when you’re out and about. In fact, when you look through the list of the leading online casinos in the UK, nearly every one of them offers a mobile slots app. As different online casinos have different ideas on the best way to offer their mobile slots, you'll find that there are some slots sites that are accessible for instant play on the browser of any mobile device, while others offer mobile slot apps that you can download and install on your smartphone or tablet.

Basically, depending on the operator in question as well as your own device and preferences, you can choose to take a spin on the reels of a game in a dedicated mobile slot app, or you can play your favourite slot machine on a mobile-responsive website. So whether you are using a tablet or smartphone, Android or iOS, or even a Windows Phone – there are more casino slot apps and mobile sites than you can imagine, let alone use in a lifetime!

No option is superior to the other and the choice between a dedicated app and an instant-play slots site is the difference between a good choice and a great one. To help you find the best mobile slot experience, we put together a guide on how to find the best casino slot apps, top rated mobile slots games, software requirements, device compatibility, and of course how to claim the best bonuses that are available to mobile slots players in the UK.

Bookmark this page as we constantly update it with everything you need to know about mobile slot apps – So you know exactly what's on offer before starting to spin the reels on your mobile device.

How We Review the Best Casino Slot Apps Online

As our slots experts at SlotSource.co.uk are passionate about mobile apps, we decided to combine our expertise and passions in putting for you a complete guide to the best casino slot apps and slot mobile sites. But our passion alone isn’t enough, so we invest into every slot app we review many hours of hard work in order to bring you the ins and outs, and recommend to you only the best casino slot apps and mobile slot sites in the UK.

Although when it comes to reviewing the best slot machine apps our work and play intertwine (did we say we are passionate about slots already? hence the reason why!), we still follow a rigours process that lets us bring you professional and objective conclusions. The following are factors we look at for every mobile slot app we review:

Slot App Gaming Licence

  • Your safety should always be a top priority, especially when it involves your mobile device which contains a lot of personal and sensitive information. If you are playing the best slot apps for real money, your banking details must also be protected. Therefore all the slots apps and websites we recommend on SlotSource.co.uk are always licenced by the UKGC (UK Gambling Commission) and are therefore constantly subject to compliance checks and audits.
  • Always use the best slot apps we feature on SlotSource.co.uk to be sure you are playing on casinos that are 100% legal in the UK!

Slot App Security and Data Protection

  • Beyond the most basic requirement of a mobile slot app being legal and licensed, we also look at which of the best casino slot apps and websites take issues of privacy and safety even further and follow their own vigilant, strict privacy and data protection policies. Our team will check the apps encryption and security certificates, RNG (Random Number Generator) audits and everything else to make sure we only feature on our site the safest slot apps in the UK.

Slot App Trustworthiness

  • The most reliable, objective reviews always come from casino players like yourself. We therefore speak to customers and scour the web for customer reviews and feedback on every mobile slot app we assess. We take every casino’s trustworthiness and reputation with players into account when writing our reviews and recommending you the best casino slot apps.

Mobile Device Compatibility

  • A slot app, or mobile casino website will only be as good as the mobile devices it works on. We test every mobile slot app on different devices and operating systems to make sure it’s compatible. So regardless of you using a smartphone or tablet, and whether it’s based on an Android, iOS or Windows Phone operating system, our SlotSource.co.uk will always find the best casino slot app for you.

Slot App User Experience

  • There are many factors in a slot app and mobile slot site that contribute to a great gameplay experience. When looking for the best casino slot apps to recommend, our experts examine closely the app design, user interface including menus, buttons and navigation, as well as app connectivity and overall performance.

Slots Available on Apps

  • Although the majority of new online slots are available on the casino’s mobile-responsive client that is accessible through most mobile browsers, offering a slot game on an app takes a bit more development and effort. Therefore the selection of slot games varies greatly between apps. In search of the best casino slot apps in the UK, we always look for casino operators that invest the most effort into transferring games from their main casino client and making as many games available on their apps. So you can be sure that SlotSource.co.uk recommends the mobile slot apps that boast the biggest selection of slot machines.

App Slots Selection

  • When it comes to the selection of games, the best casino slot apps must not only have quantity, but quality as well. Therefore our experts look carefully at the software providers that power each slot, the big hit slot titles available, progressive jackpot slots and more.

Mobile Targeted Bonuses and Promotions

  • Online casino operators in the UK make extensive use of bonuses and promotions to entice new players to sign up, as well as reward loyal players and introduce them to new games, tournaments and features. Many of the casinos we recommend offer exclusive bonuses that targeted mobile slot app users. For example an exclusive bonus to players that install the casino slot app, no-deposit bonuses that can be played online on slot apps, etc.
  • Bookmark our page so you never miss the latest free slot machine apps and all other generous bonuses and promotions that are customized for mobile app users.

App Banking Methods

  • If you are looking for the best slot apps to win real money, it is important to have easy and safe ways to deposit funds and withdraw winnings. Therefore our team at SlotSource.co.uk will always check the app’s banking section to evaluate the variety of payment methods available. When recommending to you the best casino slot apps we also look at withdrawal limits and the time it takes to process withdrawals, transaction fees, currency exchange rates and overall usability of the slot app’s banking section.

Slot App User Customer Support

  • Customer support is one of the most important parts of any casino experience, let alone for players that use slot apps and mobile slot websites. The best casino slot apps will have an extensive FAQ section as well as customer support channels such as live chat, email and phone support. All these factors are considered when we contact each casino’s customer support team and check helpfulness, response times, etc.

Not All Online Casinos Offer Mobile Apps - Why?

Surprisingly to some, not all online casinos offer slots apps. Instead, some casinos in the UK offer their players mobile casinos that are optimised for smartphones and tablets in addition to their main desktop client. Although operators will have their own reasons and priorities for choosing to offer a mobile site and not a casino app, there are two main reasons that drive casino operators in this case: providing their players greater choice and increased game accessibility.

Some online slots are extremely resource-heavy and that makes them unsuitable for mobile apps. For example, a game like Arabian Nights contains a selection of interactive bonus rounds and animations. Running this game via an app isn't easy because mobiles only have limited resources. To combat this, operators use a mobile casino site as the host. Basically, because mobile websites have more capacity for hosting resource-hungry slots, operators may choose to go down this route.

However many of the leading casinos in the UK will let you enjoy the best of all worlds: offering a desktop client, mobile slot browser client and a dedicated app – all which can be accessed seamlessly using the same casino account. Naturally, these operators will have the best casino slot apps as they are view their customers’ experience as one of their top priorities. Because of the variety of platforms and options, you will also tend to find on these casinos the best mobile slots.

Although iOS and Android devices are the dominant platforms in the mobile arena, they're not the only names in town. Because most online casinos only have limited resources, they often focus their attention on iOS and Android devices. However, to ensure that everyone gets access to the latest games, these operators will optimise their mobile websites to ensure Windows Mobile users can also enjoy playing the best slots.

What About Apps Dedicated to Slots?

In general, when you want to spin the reels of the best online slots using your mobile, you'll find the most popular games are usually offered on the best casino slot apps. Because the big slot machine titles make up such a large part of an operator's overall casino game offering, it makes sense for slot sites with apps to offer slots, casino table games, scratch cards, arcade games and all other games in one mobile casino app. However, there are still some operators that like to keep things separate. Although dedicated slots apps are less common than general casino apps, you can still find them. What's more, these dedicated slot game apps usually have the largest selection of big name titles in the business.

Top Slot Games to Play on Mobile Apps

Many of the biggest and best online slot games can now be played via apps and mobile casino sites. This increased access to action doesn’t only mean you will be able to play some of the most popular video slots, but also the UK’s leading progressive jackpot slots. Basically, whatever your preferences are in 2021, you'll find them on your mobile. Below are some of the best slot games our experts enjoyed playing on mobile sites and apps in the UK in 2021:

  1. Mega Moolah (Microgaming)
  2. Starburst (NetEnt)
  3. Rainbow Riches (Barcrest)
  4. Dark King: Forbidden Riches (NetEnt)
  5. African Legends (Microgaming)
  6. Cash Noir (NetEnt)
  7. Sisters of Oz WowPot (Microgaming)
  8. Age of the Gods Norse: Book of Dwarves (Playtech)
  9. Rise of Athena (Play’N Go)
  10. Rage of the Seas (NetEnt)

We constantly update this section with new games, so check it out regularly to stay up to date with the latest mobile slot games.

Software Requirements for Slot Game Apps

Regardless of which mobile device you use, you should always have it updated with the latest version of the operating system to meet the software requirements of the newest, best casino slot apps. Although you can still enjoy a fairly sleek gaming experience with a system that is a bit older if you choose to play via a mobile website, apps really do need the latest software version to work efficiently. Indeed, as well as giving you the greatest scope to enjoy more games, graphics and betting options, meeting the minimum software requirements is necessary to ensure you have the latest security protocols in place. Assuming your device is up-to-date, the average slots app will be around 20mb in size, so make sure you have this memory spare for the download process.

Beyond the latest software updates, the newest mobile devices will always guarantee the best hardware, processing speed and graphics, resolution and sounds that will enable you to enjoy the slot apps to the fullest. Speaking about enjoying online slots graphics and resolution: Apple is soon going to release the iPhone 12 Pro which at 6.7 inches, will be the largest iPhone to date. If you are an Android user, you have a choice to play mobile slots apps with top of the line Samsung Galaxy S20 or S20 Plus, or opt for a niche phone like Sony Xperia 1 II which is considered very strong with visuals.

If you like to use your mobile slots app on a tablet, there’s the Samsung Galaxy Tab S7 which is considered a serious rival to the iPad Pro range, with a 12.4 inch screen and superior resolution that will make your slot reels jump out of the screen. Or if you are a Kindle user, the Amazon Fire 8 Plus HD isn’t a premium tablet, but with 3GB RAM you get a boost on the standard Fire 8 performance. So you can have a very good tablet for slot apps at a very reasonable price.

These are only a few of the newer devices we used to test the best casino slot apps and websites, but probably any newer tablet or smartphone will provide you with a great, exciting mobile slot experience.

Do Apps for Slots Sites Offer Casino Bonuses?

Yes of course they do! Mobile casino operators in the UK use bonuses extensively as a tool to advertise themselves to new players and encourage them to sign up, as well as reward existing players for their loyalty. Moreover, casinos use bonuses to introduce to their players new slots and other casino games and entice them to try new games, features and platforms. The following are of the common types of bonuses offered on the best free slots apps in the UK:

Slot App Welcome Bonuses

As their name suggests, these bonuses are offered to welcome new players that are registering to the casino’s slot app or website. As welcome bonuses are available only to new slot apps players, they can only be used once. The best casino slot apps use different types of bonuses in their welcome offer including no deposit bonuses, deposit bonuses, free spins and more.

No Deposit Bonuses

No deposit bonuses, also known as sign up bonuses are given to new players simply for downloading and installing the slots app and signing up to the casino. As the name suggests, you will not need to make a deposit in order to claim this type of bonus, so you can use it to play on the best free slot machine apps.

Deposit Bonuses

A deposit bonus is given to players that deposited funds in their casino account and are ready to play on the best slot apps to win money. Usually the casino will match up the amount deposited with bonus money at a certain percentage. For example a 100% deposit match means that if you deposit £100, the casino will add £100 in bonus money to your slot app account, giving you a total of £200 to play with.

Free Spins

A free spins bonus is given as a set number of times you can spin the reels of a slot machine without spending any of your own money on the wagers. Free spins are usually given by the best free slot apps as a way to introduce players to new slot games. Therefore this bonus is typically restricted to one, or a handful of slots that are eligible to be played as part of the free spins offer.

Loyalty Points

The best casino slot apps and sites that we recommend on SlotSource.co.uk offer reward programs that let you collect loyalty points for wagers you place on slots and other casino games. Points can then be redeemed to claim bonuses, cashbacks and other benefits.

Refer a Friend Bonus

Many of the best casino slot apps in the UK will offer you a special bonus for simply referring a friend. Some casinos even take it a step further and give a bonus to your friend on your behalf as well.

Mobile Exclusive Bonuses

The leading online casinos in the UK invest significant resources and efforts into staying ahead of the mobile curve. In addition to mobile app innovation and introduction of more games on mobile apps, operators also invest in bonuses that are exclusive to mobile casino and slot apps users. These bonuses would usually include free spins, loyalty points and other bonuses given simply for using the casino’s slot app or mobile slot website.

Bonus Wagering Requirements

It is important to understand that more often than not, bonuses come with wagering requirements, which define the times required to wager the bonus before it can be redeemed into cash and withdrawn. It is always recommended to check the casino slot app’s Terms & Conditions for wagering requirements and other bonus rules.

Top Rated Slot Game Apps for iPhones

As we’ve noted above, Apple’s iOS is one of the most popular mobile platforms in the world which means that all the leading slot games have been made available for iPhones and iPads. As you scroll through the Apple app Store, you'll see iPhone and iPad free slot apps as well as iPhone and iPad free casino apps offering instant access to the best slot games in the UK. For 2021, British players wanting the thrill of mega jackpots and interactive action courtesy of the best iPhone slot games should check out these following apps:

  1. 888casino
  2. Mr Green Casino
  3. NetBet Casino

Top Rated Slot Game Apps for Android Phones

For slot games lovers on the other side of the great mobile divide, Google Play is packed with arguably the biggest selection of the best free slot apps. Given Android’s operating system flexibility, more casino operators have been able to develop on Android the best free slot machine apps. This means that you should be able to enjoy the most popular games available. For easy access to the best Android slot games in 2021, British players should check out these mobile apps:

  1. LeoVegas Casino
  2. Grosvenor Casino
  3. Mr Green

Top Rated Slot Game Apps for Windows Phones

Although less common than the iOS and Android, if you are a user of a Windows Phone device there are also many great mobile casinos that are offering the best UK slots games of 2021 available to play on Windows Mobile. Although there are quite a few good free slot apps you can choose from in the Windows app store, not all the slot games make it to the Windows slots apps. But worry not, as you will still be able to find them on UK’s best instant-play mobile slot sites which are fully compatible to use with your Window’s Phone browser.

New Slot Apps to Win Real Money

Our team at SlotSource.co.uk is constantly in search of the best new slot apps and mobile slot games. Every day our experts scour the internet, read casino forums and we are also in touch with the casinos and software providers in order to bring you the best slot apps to win real money in the UK casino market. Bookmark our new slots site section and visit us regularly, so you will be the first to know about all the new apps, innovations and slot games that will let you win real money.

Best Free Slot Apps

In various countries it is possible to download the best free slot apps and play many of the slots in demo mode, which is available instantly on a mobile casino browser or once you downloaded and installed the app. This is a great way to test new free slots without any risk. In the UK however, you can still try to the best new slots for free, but in a bit of a different format:

Due to UKGC restrictions, no free demo slots are available to play in the UK prior to signing up and creating your casino account. Once signed up however, the best free slots apps in the UK offer no deposit bonuses and free spins. So you can still learn about the slot, test the gameplay, mechanics, payouts and bonus features without spending any of your own money and before committing to a deposit.

Which Software is Available on Slot Apps?

The UK’s best game software providers all have dedicated mobile development teams which specialise in the innovation, design and release of slot games that are compatible to slot apps and mobile casino sites. Many of the game developers even have a mobile-first strategy whereas they develop and release to the UK casino market their new flagship slots for mobile gameplay before making them available on the main desktop client.

Following, are some of our recommended software developers who are renowned for constantly releasing their slots on mobile casinos:

Slot Apps Deposits and Withdrawals

The best casino slot apps in the UK offer a variety of safe and secure banking methods that allow you to make deposits and withdrawals easily right from the slot app’s banking section. Most of the banking options that are available to online casino players on their computers are now also available on mobile devices. Moreover, UK’s leading slots apps boast payment methods that are exclusive to mobile users. If you are into conventional banking, you can use on slot apps methods like bank transfers, credit and debit cards, and even checks. Most apps also let you use pre-paid methods like PaySafeCard, or dedicated online eWallets like Neteller and Skrill.

As we noted previously, UK casino operators offer unique mobile payment methods that are designed for mobile apps and allow you to make payments directly from your phone. This lets you manage all your slot app payments securely and easily, as it’s all detailed and added to your monthly phone bill. Some of the popular mobile payment methods in the UK include Pay by Phone which is included in your phone bill, Boku which is an online payment method connected to many mobile carriers in the UK and Payforit that again allows you to fund your casino account through your mobile phone payments.

Final Words on the Best Casino Slot Apps

Whether you are playing on your tablet from the convenience of your own home, taking a break from office work to spin the reels of your favourite slot using your smartphone, or playing a progressive jackpot slot whilst riding the train on your way back home from work – Mobile casino slot apps let you take the best slot gameplay with you to wherever you go, and to spin the reels at any time.

No matter where you are playing from, always remember that playing slots and other gambling games are purely for fun. Set time limits and budgets, keep a close eye on your bankroll and always gamble safely.

 

Faq

Is Downloading a Dedicated Slot Games App Safe?

Yes it is absolutely safe. All the slot apps we recommend on SlotSource.co.uk are fully regulated by the UKGC and are therefore encrypted and safe to download and use.

Should I always use Wi Fi to use the casino slot apps?

Sometimes when Wi Fi isn’t readily available, casino slot apps can be used and enjoyed using mobile data. However depending on your mobile plan, you may incur high roaming and data costs if using your slot app extensively, so if there’s free Wi Fi available it’s always best to use it.

Which is better for mobile data usage – slot apps or mobile slot sites?

There’s no one better option. While apps sometimes use background data for updates, mobile slot sites can consume usage data from browsing activities and constant uploads. If you are using a mobile slot site, you should make sure that other browser windows and sites closed, and if using a slot app you can check for the app’s data-saving settings.

How to compare and choose the best slot app?

Our team of slots experts work extremely hard in searching and reviewing slot apps, and we always recommend to you the best ones. So you can just check out our reviews and pick the best slot apps in the UK, without going through all the trouble of searching and comparing.

Are slot apps available on tablets?

Of course they are! Slot apps are available for smartphones, as well as tablets based on iOS, Android and Windows Mobile operating systems.

Are Live Casino and table games available at slot apps too?

Yes they are. Many of the best casino slot apps in the UK offer a wide range of table games, live dealer games and even sports betting in addition to their slots portfolio.

Do I need a separate account for a slot app?

No you do not. You can log into a slot app with the same account you used to sign up for the casino. Just use the same username and password, and you will be able to log in and immediately view your account balance and settings.

Do slot apps load fast on mobile?

Yes they do. The UK’s best slot apps are built on the latest mobile technology and are therefore optimized for extremely fast loading times.

Is it comfortable to use slot apps on mobile?

It is very comfortable to play and enjoy slot apps on your mobile device. All the slot games as well as app user-interface and features are developed and optimized especially for a superior mobile experience.

Can I play NetEnt slots on UK slot apps?

Of course you can! NetEnt is one of the most prominent mobile slot providers, and therefore many of the best NetEnt slot games are available on slot apps in the UK.

Can I get a no deposit bonus from a slot casino app?

Yes you can. Check out our reviews of the best slot casino apps which also feature no deposit bonuses for new players that sign up through SlotSource.co.uk.

Can I access slot tournaments via casino apps?

Most slot apps in the UK also offer on their app the same tournaments that are available on their main desktop site.

Is the mobile slots app experience better than tablet one?

It will depend on your own preferences. Some slots app users like the bigger screen size of tablets, whilst others prefer the small and compact phone screens. The app is optimized for every device so the experience is great in both cases.

Are jackpot slots available on slot apps?

Yes they are. Casino operators often feature their best, most admired slot games on their slots apps. This of course includes many of the UK’s most popular progressive jackpot slots.

Can I deposit directly via a slot app?

Yes you can. Slots apps offer a wide range of deposit methods which let you deposit directly through the app’s banking section. There are even deposit methods that are exclusive to mobile app users and allow you to deposit through your phone bill.

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