Compare.bet is dedicated to helping customers find the best place to play online. Your safety and well-being is a priority, which is why all of our expert casino reviews are 100% honest and unbiased, and we highlight the key terms and conditions of every casino bonus we advertise. Whilst we accept commission from the casinos on our list of recommendations, and this may affect where they’re positioned on our lists, we only recommend casinos that we truly believe are safe and fair.
Want to play slots on your smartphone? We’ve lined up a list of 2025’s very best mobile slot sites where you can enjoy hundreds of great titles on your smartphone. Simply compare and sign up to start playing mobile slots today!
#AD 100% up to £100 + 10% cashback. Maximum withdrawal on free spins of £100. Max £5 bet while playing with bonus funds, no maximum withdrawal. 35x wagering. Skrill and Neteller deposits don't qualify for this bonus. Click here for full T&Cs
18+ New UK and IRL customers only. Deposits through debit cards only. 40x wagering requirement on bonus, within 7 days, on eligible slot games. Winnings from bonus capped at £500. Spins available upon completion of bonus. Full T&Cs apply.
#AD New players making their first deposits only. Min deposit £20. 100% deposit match, max £100 cash. 30x wagering on first deposit amount to receive cash. Redeposit allowed to complete wagering. 18+. Full T&Cs apply.
Welcome deposit offered straight away after signing up and an extensive games library with innovative features like live chats and plenty of deposit options
Offer is available to new customers who register via the promo code CASAFS. Winnings are paid in cash. Free spins valued at 10p. Get an additional 100 free spins when you deposit and spend £10 on eligible games. Full T&Cs apply.
Join Betano today and claim £30 in free bets plus a £5 slots bonus when you bet £10 on football. Explore markets, promotions, and Betano’s unique features.
#AD 18+ New Customers Only. Opt in and bet £10 on sports (odds 1/1+) within 3 days of signing up. Get 3x£10 Free Bets for set markets (odds 1/1+) which expire in 5 days. T&Cs apply. GambleAware.org | Please gamble responsibly
*New UK customers only. 125 free spins on Big Bass Bonanza (£0.10 per spin) credited after successful £10 deposit and £10 stake on Casino, Vegas or Live Casino. No wagering requirements on free spin winnings. Debit Card deposit only (exclusions apply). This offer is valid 7 days from the new account being registered. Spin The Super Prize Wheel to enter a draw to win a trip to Vegas. Qualification requirements apply. 18+ BeGambleAware.org. Bet the Responsible Way. Full terms apply. 18+. Full T&Cs apply. Please gamble responsibly. begambleaware.org
#AD New customers only. Register with BETFRED50. Deposit £10+ via Debit Card and place first bet £10+ at Evens (2.0)+ on Sports within 7 days to get 3 x £10 in Sports Free Bets & 2 x £10 in Acca Free Bets within 10 hours of settlement. 7-day expiry. Eligibility & payment exclusions apply. T&Cs apply
New customers only. Opt-in required. Deposit £10 or more & wager 30x on casino games (contributions may vary) for 100% deposit match up to £200 extra & 100 Free Spins. Free spins on Big Bass Splash worth 10p each valid for 3 days. 7 days to deposit, wager, claim. One offer per player. 18+. T&Cs apply.
#AD 18+, New customers only. Opt in, bet £10 on any sports (odds 2.00+) in 7 days. No cash out. Get 4x£5 sports free bets for set markets (odds 2.00+), which expire in 7 days. T&Cs apply. GambleAware.org | Please gamble responsibly
#AD 18+ New customers only. Sign ip using promo code nrg80 and make a minimum deposit of £25, then wager a minimum of £25 on Big Bass slots and receive 80 Free Spins on Big Bass Bonanza. GambleAware.org. Full T&C's apply.
Applies only to new depositing players. Minimum deposit £10. Wagering requirement x35. Offer valid for 24hr. Free spins included 3 deposits.
Mobile Slot Variations
Choose from a huge range of slots to play on your mobile
With so many casino players now choosing to play on their mobile, online casino software developers place much of their focus on making the best mobile games. Whereas slot games used to run on flash, nowadays they are built using HTML5. This means the offer seamlessly gameplay across a variety of devices without the need to download any software.
In fact, many developers now adopt a ‘mobile first’ mindset to slot development. This mobile first approach means games are optimised for touch screens and are perfectly suited to the operating system and screen sizes of iOS and Android mobile devices.
As well as releasing new mobile slots, the top developers have also optimised many of their older games for mobile play. Thanks to this, you have a huge range of mobile slots to choose from, including old classics, innovative new video slots and progressive jackpot games.
Mobile Slot Apps
Download a casino app for the best mobile slots experience
Pretty much all casinos and slot sites have optimised their websites for mobile use, meaning you can play games via your smartphone’s web browser. However, many of the UK’s best slot sites have also developed native mobile apps, and we these are the best choice for mobile slots players.
One of the best things about mobile slot apps is that they have push notifications, alerting you on the latest bonuses, promotions and game releases. This means you’ll never have to worry about missing out on a happy hour free spins deal or the latest new slot games.
Native casino apps can also provide more convenient casino gaming. You can navigate to your app in just a few simple taps, with many offering fingerprint identification for quick and secure logins. Plus, mobile slots apps can provide a smoother, faster casino experience as they tend to load faster than mobile web browsers.
New Customer Offer #AD First deposit only.This offer is only available for first time depositors. Min deposit is £10. 80 Free Spins on Big Bass Bonanza. Spin Value: £_0.10. This offer cannot be used in conjunction with any other offer. This offer is only available for specific players that have been selected by PlayOJO. If you have arrived on this page not via the designated offer via PlayOJO you will not be eligible for the offer. Irregular play may lead to removal of reward. OJO's Rewards and Game policy applies. 18+. Full T&Cs apply. Please gamble responsibly. GambleAware.org
Mobile Slots Software
The best developers of mobile slots
Creating top mobile slot games is now a high priority for pretty much all casino software developers, but there are some providers that stand out for their mobile games. Let’s take a look.
Playtech
Playtech was at the forefront of the mobile casino games revolution and is now one of the world’s leading omni-channel providers. A quick look at Playtech’s awards list shows this, having been honoured by both the EGR B2B Awards and the Global Gaming Awards for its mobile products. Thanks to the Playtech ONE solution, players can enjoy great slots like Age of the Gods, Gladiator and Superman on a wide range of smartphones and tablets.
NetEnt
NetEnt is one of the biggest names in casino software, so it’s no surprise that it’s one of the top producers of mobile slot games. The NetEnt Touch platform means top slots like Gonzo’s Quest, Jumanji and Starburst are all perfectly suited to mobile play. The fact that NetEnt won Mobile Product of the Year at the 2019 International Gaming Awards tells you all you need to know about this developer’s mobile offering.
Microgaming
Having been honoured by both the EGR B2B Awards and International Gaming Awards for its mobile product in the last few years, Microgaming definitely deserves its place on this list. Like Playtech and NetEnt, Microgaming is one of the most famous providers of online slots and has produced great titles like Game of Thrones and Thunderstruck II, all of which provide a smooth, immersive mobile casino experience.
Play’n GO
Play’n GO has earned a reputation for creating some of the most innovative slots on the market, and its OMNY platform means top games like Rise of Olympus and Gunslinger Reloaded can be played seamlessly on smartphones and tablets. Winner of Mobile Supplier at the 2019 EGR B2B awards thanks to the high quality user interface and user experience of its mobile products, Play’n GO mobile games are definitely up there with the best.
Red Tiger Gaming
It’s not just the most established developers that make top mobile slots. Red Tiger was only founded in 2014, but has already won prestigious awards such as Innovation in Mobile and Mobile Gaming Software Supplier at the 2019 EGR B2B awards. With great slots like Mystery Reels, Dragon’s Fire and Thor’s Lightning being perfectly suited to mobile play, Red Tiger is sure to please fans of mobile slots.
Mobile Slots Bonuses
Bag some free spins for mobile slots
Casino bonuses aren’t restricted to desktop players – pretty much all the best slot sites make their bonuses available to mobile slots players too. So if you’re looking to enjoy some bonus slots playtime with the help of some free spins, a matched deposit deal or even a no deposit bonus, you’re well catered for at the top new casinos on our list.
These rewards do exactly what they say on the tin – let you spin the reels for free. Free spins usually come with a deposit match bonus as part of a welcome bonus package for new customers. At some casinos you can claim over 100 spins, meaning plenty of extra playtime on some top mobile slots.
Matched deposit deals reward you with bonus funds worth a percentage of your first deposit, up to a certain amount. For example, a 200% up to £100 deal would give you £100 in bonus funds when you make a £50 deposit.
Some casinos go that one step further and reward bonuses to new players simply for signing up – no deposit needed! These deals usually reward free spins, such as 10 free spins no deposit. What better way to settle in at a new casino by playing real money mobile slots for free?
New Customer Offer #AD First deposit only.This offer is only available for first time depositors. Min deposit is £10. 80 Free Spins on Big Bass Bonanza. Spin Value: £_0.10. This offer cannot be used in conjunction with any other offer. This offer is only available for specific players that have been selected by PlayOJO. If you have arrived on this page not via the designated offer via PlayOJO you will not be eligible for the offer. Irregular play may lead to removal of reward. OJO's Rewards and Game policy applies. 18+. Full T&Cs apply. Please gamble responsibly. GambleAware.org
Read the bonus terms and conditions before signing up – wagering requirements, win restrictions and time limits determine the true value of a bonus.
Payment Methods
Banking made easy at the top mobile slot sites
You can use all the same banking methods at a mobile casino as you can on a desktop site, meaning you can choose from a variety of options including bank cards and e-wallets like PayPal. However, some payment methods are better-suited to making deposits via your mobile phone.
Pay by phone bill can be a great banking method if you’re playing on the move. This lets you make deposits with your mobile via payment providers like Boku. Simply enter your phone number and verifying the payment via SMS. When you use pay by mobile, deposits are charged to your phone bill rather than your bank account, so you can play now, pay later.
E-wallets can also make for fast mobile payments, particularly if you download the mobile app for PayPal, Neteller or Skrill. Not only do these apps make it easy to manage your funds via your phone, but they also allow you to switch from your casino app to your e-wallet app and verify payments within seconds.
Compare the best mobile slot sites and sign up to play
Ready to find your perfect mobile slots site? Look no further than our carefully selected list. Easily compare the bonuses on offer and check out our expert reviews for a more in-depth look at each site. Simply compare, sign up and start playing slots on your mobile today!
Yes. We only recommend the best mobile slot sites that are licensed for UK players by the UK Gambling Commission. This means they’re held to high standards when it comes to player protection, security and fairness, so you can play mobile slot games in confidence.
No. While many of the best classic online slots have been adapted for mobile play, some older titles are only available on desktop. However, with thousands of mobile optimised slots to choose from, slot fans are still spoilt for choice.
No. You’ll need an internet connection to play at mobile casino sites or apps Mobile casino apps require an internet in order to function, so you’ll need to either be connected to WiFi or use mobile data to play slots on a native app.
Yes. Just like when you play on a desktop, the UK’s best mobile slot sites offer a wide range of games in free mode. Of course, you can’t win real money on these games, but they’re great if you want to play slots for fun or try a new title without putting real cash on the line.
Sure. Pretty much every casino game is available via mobile, including blackjack sites, roulette and live casino games. However, as with slots, some older games are only available when you play on a desktop.
The people behind this page
Compare.bet's online gambling content experts helped write, edit and check this page:
Danielle has six years of experience writing on a wide variety of topics, including online casino, sports betting and tourism. She has a BA in French with English from King’s College.
Subscribe to receive the best offers, tips, and competitions straight to your mailbox. 18+ only. T&Cs apply.
Privacy & cookie notice
Just so you know, this site uses cookies to give you the best possible experience. Close
¿Tienes más de 18 años?
Nuestra página web con contenido sobre juego online es para mayores de edad.
