The Best Mobile Slots of 2021

There are many great casino games out there today, but online slots tend to rule the roost. While it is always a quality experience playing slots on desktop computers, it is also ideal to be able to play them on the go through your mobile device.

The majority of online casinos now invest heavily in their mobile offerings as this is becoming a more and more popular way to play your favorite video slots. This guide will walk you through everything that needs to be known about mobile slot games.

Top 10 Casino Sites for playing mobile slots in the UK

There are countless different online gambling sites in the world today on which you can play the biggest casino games such as slots. However, they are all not the same, with some standing out from the crowd for a variety of reasons. We have conducted extensive research and developed a list of the best online casino sites for mobile slots for new players in Great Britain today tha are licensed by the Gambling Commission in the UK:

  • Slot Title
  • Pay Back
  • Key Features
Welcome bonus up to £5,000

  • Good reputation
  • Great Playtech titles
  • 24/7 customer support
Welcome bonus up to £5,000Play NowOur score:
Welcome bonus up to £5,000
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Welcome Bonus: £88 no deposit bonus

  • One of the most established casinos
  • Proprietary software
  • Quality game developers
Welcome Bonus: £88 no deposit bonusPlay NowOur score:
Welcome Bonus: £88 no deposit bonus
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Welcome bonus up to £5,000

  • Fast withdrawals
  • Quality slots providers
  • 24/7 customer support
Welcome bonus up to £5,000Play NowOur score:
Welcome bonus up to £5,000
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Deposit bonus up to £1,000 + 200 free spins

  • Massive game library
  • Top-tier mobile offering
  • Leading reputation
Deposit bonus up to £1,000 + 200 free spinsPlay NowOur score:
Deposit bonus up to £1,000 + 200 free spins
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100% first deposit bonus up to £300 + 300 free spins

  • 24/7 customer support
  • Strong mobile offering
  • UK Gambling Commission licensed
100% first deposit bonus up to £300 + 300 free spinsPlay NowOur score:
100% first deposit bonus up to £300 + 300 free spins
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Welcome Bonus: 30 free spins

  • Quality mobile slots
  • Easy to use
  • 24/7 support
Welcome Bonus: 30 free spinsPlay NowOur score:
Welcome Bonus: 30 free spins
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Welcome Bonus: 100% deposit bonus up to £1,000

  • Good mobile offering
  • Numerous payment options
  • 24/7 support
Welcome Bonus: 100% deposit bonus up to £1,000Play NowOur score:
Welcome Bonus: 100% deposit bonus up to £1,000
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Welcome Bonus: Bet £10, Get £50

  • Huge game library
  • Many payment methods
  • Well-respected
Welcome Bonus: Bet £10, Get £50Play NowOur score:
Welcome Bonus: Bet £10, Get £50
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Welcome Bonus: 100 free spins

  • Fast withdrawals
  • Great mobile app
  • 24/7 support
Welcome Bonus: 100 free spinsPlay NowOur score:
Welcome Bonus: 100 free spins
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Welcome Bonus: 100% deposit bonus up to £1,000

  • Good selection of mobile slots
  • 24/7 support
  • Long-standing reputation
Welcome Bonus: 100% deposit bonus up to £1,000Play NowOur score:
Welcome Bonus: 100% deposit bonus up to £1,000
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What are mobile slots?

Mobile slots are as the name suggests, video slots that you are able to play on your mobile device. This means that you no longer have to go to a land-based casino to physical slot machines or to be sitting at your desktop computer or laptop. You can just take out your phone and once you have an internet connection, you can play your favorite slots titles.

Most online casinos will have a strong mobile offering these days as a lot of players are mainly playing through these devices. Some casinos allow players to access casino games directly through their web browser, while others will have apps that you can download for the likes of iOS and Android devices.

You can do pretty much everything through the mobile offering that it’s available on desktop, such as banking, creating an account, playing games, and availing of promotions.  When it comes to Android casino apps, a lot of the time you will not find these on the app store. This is because Google takes a hard stance against gambling in a lot of cases. Therefore, a lot of operators will allow you to download their app directly from the casino website.

For iPhone players, you will normally be able to download the apps directly from the App Store. As well as your mobile, you can also play slots through your iPad and other tablet devices, which is ideal.

Mobile slots apps

As mentioned, there will be some online casino sites that will only allow you to play games through your web browser via HTML5 platforms, whereas others will offer apps that you can download. These apps will almost always be available for both iOS and Android devices.

The apps will usually be quite small in terms of storage size, which is ideal. They will also be quick to download and easy to use. In terms of the advantages of using an app rather than the mobile website, you will usually get a smoother gameplay experience. This is because everything has been optimized to run directly through the app. The overall user casino experience tends to be top-notch.

How to play mobile slots

If you are looking to get started playing mobile slots, then there are a few easy steps that you will need to follow. Firstly, you will need to find an online casino that has a good mobile offering and a decent library of slots. Thankfully, we have done most of this hard work for you and picked out some of the best mobile casinos around today and the best old and new games.

Then you will need to choose one of these options and begin the registration process. All you need to do is enter the standard personal info, such as name, address, and date of birth. You can sign up for this account directly through your mobile, whether it is through downloading the mobile app or straight through your web browser.

As soon as you have created your account, you will be able to play many of the online slots games for free. If you want to play for real money, then you can make your first min deposit. sure that you are aware of any welcome offer that may be in place. Then you can get started playing slots of real money once you have deposited your funds. The selected games will launch directly in the app or through your web browser, which is ideal.

The most popular mobile slots

There are thousands of different slots games that will be available on mobile devices. These will come in many different forms, including megaways and progressive jackpots. Here is a list of the top ten best slots options currently on the market:

1. Dead or Alive (RTP: 96.7%)

dead or alive

Dead or Alive is a very well known game in the online casino world and it sees you getting involved in some Wild West adventures. There is a great free spins bonus that can be triggered when you get three gun symbols, providing you with a dozen free spins to play with. The design has a great look to it and it also has a very strong RTP, making it an ideal game for slots players.

2. Spinata Grande (RTP: 96.84%)

Spinata Grande is one of the most exciting types of mobile slots that you will come across. This NetEnt title has tons of great features and will leave you with a smile on your face. There are constant wins and free spins galore. Everything from the design, feel and gameplay will have you coming back for more.

3. 300 Shields (RTP: 95.3%)

300 shields

If you have ever seen the movie 300, you will know that the Spartans were a force to be reckoned with. This title from NextGen Gaming has plenty of blood and gore, so it is not going to be for those people who don’t deal well with these kinds of things. The graphics are superb and there is a 300x wild multiplier on offer. Do note that it is a high volatility slot, but is definitely worth trying out on mobile.

4. Crown of Egypt (RTP: 95.03%)

crown of egypt

There are tons of games that have an Ancient Egypt theme, but this one stands out from the rest in a lot of ways. It is an IGT title and marries beautiful graphics with stellar gameplay. This is a 5×4 slot that has 1,024 paylines, giving you plenty of chances to win. The gameplay is fast and furious, with the soundtrack adding to the overall experience. The main strength is the multi-ways feature that allows bigger and bigger wins.

5. Thunderstruck II (RTP: 96.65%)

thunderstruck II

Thunderstruck II is one of the biggest slots titles in the world today. It is a sequel to a great original title and what is a rarity, the sequel is better than the original title. This Microgaming mobile slot has tons of great bonus features. Here are four types of free spins rewards on offer, as well as expanding wilds, scatters, bonuses, free mobile slots games, and multipliers. There is a good RTP and a lovely in-game jackpot. This is definitely a game you need to try out today thanks to all of the quality features.

6. Starburst (RTP: 96.1%)


Starburst is perhaps the most famous slot title in the world today. It is regularly featured in free spins welcome offers and for good reason. The gameplay mechanics are straightforward, but the game looks visually stunning. NetEnt always delivers with its mobile slots for real money and this one is no different. There is a good in-game jackpot up for grabs, as well as the low variance allowing for plenty of wins.

7. Book of Ultimate Infinity (RTP: 96.5%)

book of ultimate

This is a medium to high volatility slot that combines infinity reels with expanding scatter pays. This sees a chosen symbol paying the same as a scatter and expanding across the reel, meaning that you will get greater wins across the paylines. Infinity reels see more reels being added with each win.

While this game might sound complex on the surface, in reality, is it pretty simple and straightforward. There are plenty of great multipliers that bring excitement to proceedings and tons of quality features, making it an ideal mobile slot for more advanced slots players.

8. Pink Elephants (RTP: 96.1%)

pink elephants

Pink Elephants is a popular video slot developed by Thunderkick. The theme is similar to what the name suggests, something that has not really been done before. There are a massive 4,096 different ways for you to win through this game, with plenty of high-paying symbols being on offer. The main highlight of this title is the free spins, allowing you to get some decent returns over time without having to stake additional money.

9. Twin Spin (RTP: 96.6%)

twin spin

Twin Spin is a game that brings some 70s’ vibes to proceedings, with some funky music completing the gameplay. NetEnt knows how to produce high-quality mobile slots and this one is no different. However, this game either is loved or hated by players so it depends on your tastes. It is an ideal game for those people who want to win big and need plenty of excitement during the course of play.

10. Rainbow Riches (RTP: 95.14%)

rainbow riches

Rainbow Riches plays on the traditional leprechaun theme. It is a simple slot with ten paylines and five reels. It is more of a basic game than others on this list, but sometimes this is exactly what the doctor ordered. There is a nice free spins feature, as well as the chance to get some riches through potential big wins.

Online mobile slots vs desktop

The playing experience for slots when it comes to mobile and desktop devices is not too different. Naturally, the screen sizes will be different. However, all of the leading online casino sites will be sure that they are only offering games that have been optimized for mobile, so you will have no issues with gameplay quality.

There will normally be some games that do not make their way over from desktop to mobile, but this is not really as big of an issue in 2021 as it was a few years ago. Overall, there is not much you can do on desktop that is not available on mobile.

Mobile casino slots bonuses

When it comes to casino bonuses, there are different types of deals you will come across. As an incentive, there will be some sites that offer a bonus to mobile players, such as a mobile slots no deposit bonus. You will also still be able to access the other promotions that are being offered.

This includes the welcome offer, where you will normally get your hands on some form of a deposit bonus or free spins. The process of using bonuses is the same on mobile, you will have to meet the wagering requirements in most cases before the bonus funds can be cashed out.

Free mobile slots

One of the best aspects of most online casinos today is that they will usually give you the ability to play old and new mobile slots games for free. Therefore, you can try out a platform and certain games or strategies without having to risk any real money. This transfers over to mobile, whereby you can play slots games for free on mobile phone devices.

Other leading table games

As well as online slots, there are many other great casino games you will come across when it comes to online gambling sites. These include the likes of live casino games, roulette, blackjack, casino poker, baccarat, and craps. Here is an insight into some of these highly popular casino games:

Bottom Line

Being able to play your favorite casino games on the go is huge. This provides you with massive flexibility and allows you to enjoy the gaming experience no matter where you may be. There are tons of great mobile slots UK and online casinos to choose from. You can sign up for an account with one of them and get started playing mobile in a matter of minutes.


Will every slot that is available on desktop transfer over to mobile?

Some platforms will have almost every slot available on both mobile and desktop, while others will not have every single desktop slot on offer through your mobile device. Some of the leading mobile slots you will almost always come across include Gonzo’s Quest and Cleopatra.

Is playing through an app or mobile website better?

Both will have their advantages. Using a mobile website means that you do not have to download anything, while the app will usually allow for slightly better gameplay and smoother overall experience.

Are there different types of slots available on mobile?

In the slots world, there are numerous types of slots that you will come across. There are classic slots that are like the old school slot machines, while you have modern 3D casino slots, and progressive jackpot slots. You will usually find a mix of all these slot types on mobile casinos.

What is the best casino bonus for mobile slots?

There are great aspects associated with most types of offers. Free spins that allow you to keep the winnings are always ideal, with most deposit bonuses allowing you to play slots and still contribute 100% to the turnover targets. Cashback offers can also help boost your gaming experience but minimizing your losses somewhat.

What are some good payment methods for depositing on mobile?

There are usually a variety of different ways to add and withdraw funds via mobile. E-wallets such as Skrill and Neteller are often very easy and payouts are very fast. The minimum deposit will also usually be low, but do read the T&Cs for the welcome bonus to make sure that you can still avail of the max bonus offer while depositing via Neteller or Skrill.

About Andrew O'Malley

Alex has been writing about the gambling industry for more than five years, covering everything from sports betting to casinos and poker. With the sector constantly evolving, he loves nothing better than staying up to date with the latest movers and shakers in the space.