Whether you like to gamble using an online casino app or free option for either Android or iPhone, you’re spoilt for choice for slot games – that's why we’ve done the hard work for you. 

From listing the highest payouts to the pros and cons of slots, we’ve covered off the best casino apps and biggest payouts for mobile gamblers.. 

Best casino slot apps: Jackpot247 Casino 

Jackpot247 Casino slot payout

Payout: 99.32%.

Does Jackpot247 Casino have a welcome bonus? 

Jackpot247 has been known to offer a welcome bonus. 

How many slot games does Jackpot247 Casino have? 

414.

Most popular slot games on Jackpot247 Casino 

• Mystery Reels 

• Blood Suckers 2

• Mega Fortune 

• Black And White 

• Money Train 

Are there real money slots on Jackpot247 Casino? 

Yes. 

Are there jackpot slots on Jackpot247 Casino? 

Yes. 

Payment gateways available on Jackpot247 Casino 

Complete list of Jackpot247 Casino deposit providers 

• VISA 

• Mastercard 

• Diners Club Card

• Maestro

• Neteller

• PayPal

• Paysafecard

• Qiwi

• Skrill

Complete list of Jackpot247 Casino withdrawal providers 

• VISA 

• Mastercard

• Maestro

• Neteller

• PayPal

• Skrill

Does Jackpot247 Casino have an online casino? 

Yes. You can find out more about the online casino by reading our review of Jackpot247 Casino. 

Online Casinos ⭐ rating

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Best casino slot apps: LeoVegas Casino 

LeoVegas Casino slot payout

High-end RTP: 97.60%.

Does LeoVegas Casino have a welcome bonus? 

LeoVegas generally has a welcome bonus for its new players. 

How many slot games does LeoVegas Casino have? 

601.

Most popular slot games on LeoVegas Casino 

• Book Of The Dead 

• Starburst 

• Bonanza 

• Immortal Romance 

• Cleopatra 

Are there real money slots on LeoVegas Casino? 

Yes. 

Are there jackpot slots on LeoVegas Casino? 

Yes. 

Payment gateways available on LeoVegas Casino 

Complete list of LeoVegas Casino deposit providers 

• VISA

• Mastercard

• PayPal

• Bank Transfer

• Neteller

• Skrill

• Paysafecard

Complete list of LeoVegas Casino withdrawal providers 

• Neteller

• Skrill

• PayPal

• VISA

• Skrill

• Paysafecard

Does LeoVegas Casino have an online casino? 

Yes. Our review of LeoVegas Casino explains everything you need to know about the online casino. 

Online Casinos ⭐ rating

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Best casino slot apps: 32Red Casino 

32Red Casino slot payout

Payout: 97.43%.

Does 32Red Casino have a welcome bonus? 

32Red Casino often has a welcome bonus for its new players. 

How many slot games does 32Red Casino have? 

208.

Most popular slot games on 32Red Casino 

• Immortal Romance 

• Thunderstruck II

• Tiki Mania 

• Bonanza 

• Who Wants To Be A Millionaire 

Are there real money slots on 32Red Casino? 

Yes. 

Are there jackpot slots on 32Red Casino? 

Yes. 

Payment gateways available on 32Red Casino 

Complete list of 32Red Casino deposit providers 

• VISA

• Mastercard

• Maestro

• PayPal

• Neteller

• Skrill

• EcoPayz

• Entropay

• Paysafecard

• Wire Transfer

Complete list of 32Red Casino withdrawal providers 

• VISA

• Mastercard

• Maestro

• PayPal

• Neteller

• Skrill

• EcoPayz

• Entropay

• Paysafecard

• Wire Transfer

Does 32Red Casino have an online casino? 

Yes. You can get all the important information about the online casino by reading our review of 32Red Casino. 

Online Casinos ⭐ rating

⭐⭐⭐⭐

Best casino slot apps: bgo Casino 

bgo Casino slot payout

High-end RTP: 98.00%.

Does bgo Casino have a welcome bonus? 

You will often get a welcome bonus from bgo Casino.

How many slot games does bgo Casino have? 

933.

Most popular slot games on bgo Casino 

• Lightning Strike 

• Book Of The Irish 

• Scrolls Of Ra

• Ted

• Scudamore’s Super Stakes 

Are there real money slots on bgo Casino? 

Yes. 

Are there jackpot slots on bgo Casino? 

Yes. 

Payment gateways available on bgo Casino 

Complete list of bgo Casino deposit providers 

• Visa

• Mastercard

• Maestro

• Skrill

• Neteller

• PayPal

• Paysafecard

• Boku

Complete list of bgo Casino withdrawal providers 

• Visa

• Mastercard

• PayPal

• Maestro

• Skrill

• Neteller

• Wire Transfer

Does bgo Casino have an online casino? 

Yes. We give you all the important details about the online casino in our detailed review of bgo Casino. 

Online Casinos ⭐ rating

⭐⭐⭐⭐

Best casino slot apps: 888 Casino 

888 Casino slot payout

Payout: 97.15%.

Does 888 Casino have a welcome bonus? 

888 Casino offers a range of rewards to new and returning players, with welcome bonuses usually a key feature of its offering.

How many slot games does 888 Casino have? 

525.

Most popular slot games on 888 Casino 

• Conan 

• Diamond Strike

• Theatre Of Night 

• Starburst 

• Don Spinchote 

Are there real money slots on 888 Casino? 

Yes. 

Are there jackpot slots on 888 Casino? 

Yes. 

Payment gateways available on 888 Casino 

Complete list of 888 Casino deposit providers 

• Apple Pay

• AstroPay Card

• Bitcoin by Skrill

• ecoPayz

• EPS

• iDebit

• INSTADEBIT

• Instant Payments by Citadel

• INTERAC® Online

• iWallet

• MuchBetter

• NETELLER

• Nordea

• Online Bank Transfer

• Op-Pohjola

• Oxxo

• PayPal

• Paysafecard

• Profee Wallet

• PurplePay

• Qiwi VISA Virtual

• Skrill

• Sofort

• Todito Cash

• Transferencia Bancaria

• Trustly

• Verkkopankki

• Visa QIWI Wallet

• Visa, MasterCard, Diners Club

• WebMoney

• Wire Transfer

• Yandex.Money

Complete list of 888 Casino withdrawal providers 

• Visa credit card

• Maestro Debit Card

• MasterCard via BACS (UK)

• Skrill

• NETELLER

• PayPal

• EntroPay Card

• Wire Transfer

• WebMoney

• IDebit

Does 888 Casino have an online casino? 

Yes. You can learn all you need to know about the online casino by reading our review of 888 Casino. 

Online Casinos ⭐ rating

⭐⭐⭐⭐

Best casino slot apps: Casino.com Casino 

Casino.com Casino slot payout

Payout: 99.32%.

Does Casino.com Casino have a welcome bonus? 

Casino.com has been known to offer a welcome bonus that includes both a cash offer and free spins. 

How many slot games does Casino.com Casino have? 

Over 120.

Most popular slot games on Casino.com Casino 

• The Price Is Right 

• Dynamite Riches 

• New Year’s Bonanza 

• Aladdin And The Sorcerer

• Justice League 

Are there real money slots on Casino.com Casino? 

Yes. 

Are there jackpot slots on Casino.com Casino? 

Yes. 

Payment gateways available on Casino.com Casino 

Complete list of Casino.com Casino deposit providers 

• VISA 

• iDebit

• PayPal

• Neteller

• Skrill

• Citadel Instant Banking

• paysafecard

• ecoPayz

• Bank Transfer

Complete list of Casino.com Casino withdrawal providers 

• VISA

• iDebit

• PayPal

• Neteller

• Skrill

• Citadel Instant Banking

• paysafecard

• ecoPayz

• Bank Transfer

Does Casino.com Casino have an online casino? 

Yes. You can get a detailed assessment of this great online casino by reading our review of Casino.com Casino. 

Online Casinos ⭐ rating

⭐⭐⭐⭐⭐

Best casino slot apps payout

There’s one simple way to establish the payout for slot apps – RTP (Return To Player). This is the amount of money that is paid back to gamblers over time – in other words, it’s your payout. 

How does RTP work? Like this. Say a game has an RTP of 99%. What this means is that £99.00 of every £100 wagered on that game is paid back to gamblers in the long run. 

What this doesn’t mean is that if a game has a payout of 99% then you’ll only lose £1 for every £100 you bet – the payout is random and that means you could get a return of more or less than 99%. 

The very best casino slot payout apps have the highest RTP. We looked at countless slot apps and we came up with a list of the top three based on their payout. 

Best casino slot payout apps No. 1: Mr Green Casino – 99.90%

Credit: Mr Green Casino

Best casino slot payout apps No. 2: Casino.como – 99.32%

Credit: Casino.com

Best casino slot payout apps No. 3: Jackpot247 – 99.32%

Credit: Jackpot247 Casino

5 most popular casino app slot games 

There are thousands of slot games you can play at online casinos. It’s almost always the category with the biggest selection of games and some online casinos even have free slot games you can play. 

We spoke to members of the team to find the most popular slot games and came up with a list of the top five titles – there are some excellent slot games among the list and you may have already played a few of them. 

Slot game No. 1: Starburst 

Credit: YouTube

Casino payout: 96.1%

Probably the most well-known online slots game of all time, Starburst is a non-negotiable title for the best casino slot apps. It has five reels, ten paylines, and a maximum prize of 50,000x the money that’s been staked – it’s no surprise that Starburst is our most popular slot game. 

Slot game No. 2: Book Of The Dead 

Credit: YouTube

Casino payout: 96.2%

Sharing its name with the grisly text from Sam Raimi’s Evil Dead, Book Of The Dead is set in Ancient Egypt. It has five reels, ten paylines, and stakes ranging from £0.10 to £100 for a spin, making it a worthy entry to any casino app’s collection of slot games. 

Slot game No. 3: Thunderstruck II

Credit: YouTube

Casino payout: 96.7%

Even more popular than its near namesake predecessor, Thunderstruck II includes Thor's hammer, Mjölnir, five reels, and an enormous 243 paylines. One of the reasons that it’s one of the finest casino app slot games is the Wildstorm symbol – get five of these and you’ll get a whopping 7,000x jackpot. 

Slot game No. 4: Invisible Man 

Credit: YouTube

Casino payout: 96.4%

Inspired by a 1933 film of the same name, Invisible Man combines sublime graphics with a free spins feature to create one of the very best casino app slot games. It has five reels and ten paylines, giving you plenty of opportunities to win some money. 

Slot game No. 5: Bees Kneez

Credit: YouTube

Casino payout: 95.3%

Bees Kneez has a feel that’s both retro and lighthearted. The graphics are kitsch, bright, and use big friendly symbols. The game has five reels and 25 paylines, along with free spins if you match the right symbols – wild cocoons. 

Best casino slot apps for Android 

With two billion Android users worldwide, there are plenty of gamblers seeking a great slot app. While there are many great online casinos with superb apps, we’ve picked a trio of free apps that act as a great starting point for Android gamblers.

Android slot game series No. 1: Dragon Dollars 

Credit: YouTube

Dragon Dollars is a slot app collection that’s ideal for Android gamblers who want a gentle introduction to playing slots. Why? Because the game is for “entertainment purposes only. No real money can be won or lost.”

Android slot game series No. 2: Slots - Pharaoh's Way

Credit: YouTube

With 20 slots available upon download, Slots - Pharaoh's Way offers a great variety of games for Android gamblers. You get lightning reel stop, simple gameplay, and the chance to make some big (non-real money) wins – all of which makes its entry among the best casino slot apps for Android a no-brainer. 

Android slot game series No. 3: Casino Joy 

Credit: YouTube

Offering an introductory bonus of $20,000,000 of (fake) money, Casino Joy is one of the best ways to get a feel for slots. It’s free to download, free to play, and makes it to number three on our list of the best casino slot apps for Android. 

Best casino slot apps for iPhone

There are 900 million iPhones in the world, meaning there’s an enormous amount of gamblers who choose to use the platform for their gambling. We’ve narrowed down the countless options to give you the three best casino slot apps for iPhone. 

iPhone slot game series No. 1: Huge Win Slots

Credit: YouTube

Huge Win Slots gives you 10,000 free credits to commence your gambling, but that’s not the only great thing about this collection – it’s realistic, comes with tournaments, and allows you to play with your friends on Facebook. All in all, it’s an easy pick for our list of best casino slot apps for iPhone gamblers.  

iPhone slot game series No. 2: Slots of Vegas

Credit: YouTube

The name says pretty much all you need to know about this collection – what more could you want than being able to play the Slots of Vegas? Perhaps nothing, but what you get when downloading this free app is a welcome bonus of 50,000,000 coins. Combine that with a great range of games and Slots of Vegas is easily one of the top casino slot apps for iPhone betting.  

iPhone slot game series No. 3: MONOPOLY Slots

Credit: YouTube

Is it a novelty? Yes. Does it feature some awfully silly graphics? Of course. But these are the reasons to love MONOPOLY Slots. Why? Because those are the qualities of some of the very best slot games. That means this casino slot app for iPhone fans gets a big tick from us.  

Best casino slot apps for safety

How do you define what the best casino slot apps are for safety? It’s pretty simple really – you look to see that they’re regulated by globally recognised gamling organisations. 

So many of the best casino slot apps are being regulated by the same authorities, meaning that the list of safe options is enormous. With this in mind, we think that the most sensible way to decide if you’re using a safe casino app is to know the gambling regulatory bodies to look out for – you can see their logos below. 

Best casino slot apps for safety have the UK Gambling Commission logo 

Credit: UK Gambling Commission

Best casino slot apps for safety have the Gibraltar Gambling Commissioner logo

Credit: Malta Gaming Authority

Best casino slot apps for safety have the Swedish Spelinspektionen logo 

Credit: Swedish Spelinspektionen

What are the pros & cons of online slots versus other casino games?

Slot games are enormously popular – it’s why there are thousands of titles to choose from and why the best casino slot apps have a huge games library. 

But there are many other different types of games you can play at land and online casinos – blackjack, roulette, and poker are just three of the other examples (and probably the most popular alternatives to slots. 

While slots have advantages over some of the other casino games, there are disadvantages too. We’ve listed some of the key pros and cons of slots and the other main casino games you can play. 

Pros and cons of slot games 

Pros 

• Incredibly simple to play 

• Often have free spins 

Cons 

• Pure chance 

• You can be spoilt for choice 

Pros and cons of blackjack games 

Pros 

• Fast-paced gameplay 

• Card-counting gives you an edge over the house 

Cons 

• It’s you against the dealer – you can’t beat your fellow gamblers 

• There’s not a lot of variety 

Pros and cons of roulette games 

Pros 

• Great odds that offer the chance for some big wins

• Often has very quick payouts for gamblers 

Cons 

• It’s a game that’s 100% chance based 

• Odds change based on whether you play European or American roulette 

Pros and cons of poker games 

Pros 

• Extremely varied 

• There’s skill to the games 

Cons 

• Chance still plays a big part – even the best players lose 

• There can be a lot of rules for you to learn 

There’s a lot that goes into deciding what makes the best casino slot apps separate to the rest. But after reading our detailed guide to the best casino slot apps you now know which online casinos to use, which games to play, which casino apps have the best payouts, where to find free slot collections, and the pros and cons of playing slot games. All that’s left now is to download a few of these apps and try them out!