Are jackpots smaller on casino apps? No. A progressive pot shared across a network is one figure, whether you look at it in an app or on a desktop site, and UK rules make the operator show it. What can make a jackpot smaller for you is the game version, the stake you play and the kind of jackpot the slot uses.
Network jackpot pots are the same on every device; the app just shows the live figure.
Operators can choose different RTP versions of a game, and that applies to their app and website alike.
Fixed jackpots scale with your stake, so a 10p spin has a smaller top prize than a £2 spin.
A jackpot version of a slot can return less than its standard version.
Read the game's help screen in the app to see the RTP, seed and ceiling.
Network pot on a phone
Same as desktop
Current value shown
Required for eligible players (RTS 9)
RTP versions
Set by the operator, not the device
Fixed jackpots
Usually a multiple of your stake
Rules shown before play
Funding, seed and ceiling (RTS 9A)
Are jackpots smaller on casino apps? The short answer
No, not because of the app. When a slot is linked to a network jackpot, every spin on every device feeds the same pot and the same figure is on offer to each eligible player. The app is just a different screen showing that number.
The idea that apps pay less comes from a few real differences that have nothing to do with phones. An operator may run a lower-RTP version of a game, a small stake shrinks a fixed jackpot, and some slots come in standard and jackpot editions with different maths. This page takes each one in turn. For other app myths, browse our casino app questions.
Why a shared jackpot can't be smaller on a phone
A progressive grows by a fixed share of each qualifying stake. If 1% of every stake is added, £100,000 of play from all players adds £1,000 to the pot, and when someone wins it resets to its seed value. Splitting the pot by device would make no sense, because the contributions come from everyone.
The Commission's RTS 9 standard (opens in a new tab) also says all eligible players should be able to see current jackpot values, updated as frequently as practicable. So the figure you see in the app is meant to be the live pot. If it ever looks different from the website, it's most likely a refresh delay, and the game's rules decide what's actually paid.
Fixed, local and network pots differ greatly in size
Seed and ceiling
Yes
Capped pots stop growing at the ceiling
None of those depends on whether you use a phone, tablet or computer. They depend on the game, the operator's settings and how you play.
Different RTP versions of the same jackpot game
Some slots are supplied in more than one RTP setting, and the operator picks one. That doesn't change a network pot, but it changes how much the rest of the game pays back. Examples from our slot reviews:
Genie Jackpots lists a 96.49% RTP, and a 92.73% version is offered by at least one operator.
Divine Fortune lists 96.59%, which includes about 4.07 points of jackpot contribution, and lower settings exist.
Wolf Gold lists 96.01%, and lower RTP settings exist.
On £100 of spins, the gap between 96.49% and 92.73% is £3.76 of expected loss. That's a real difference, but it follows the operator, not the device. Under the RTP information rules, the RTP must be available before you play, so find the RTP in the app rather than relying on a review figure.
Smaller stakes, smaller fixed jackpots
Fixed jackpots usually pay a multiple of your stake. Wolf Gold's maximum win is 2,500 times the stake, and that includes its fixed Mega jackpot, which is won by filling all 15 positions in the Money Respin.
Wolf Gold maximum win (2,500× stake) at different stakes
Stake per spin
Maximum win
Who can stake it
10p
£250
Any adult
50p
£1,250
Any adult
£2
£5,000
Any adult (the cap for 18–24s)
£5
£12,500
Players aged 25 and over
Progressive pots work differently: the pot doesn't scale with your stake, but RTS 9 says your chance of winning should rise with the amount you contribute. Either way, a bigger stake also means a bigger expected loss per spin, and the slot stake limits cap it at £5 or £2.
Jackpot editions can return less than standard games
Some slots exist in a standard edition and a jackpot edition. King Kong Cash Even Bigger Bananas, a 2023 Blueprint release that builds on King Kong Cash, lists 96% RTP in its standard form and 94.99% in its Jackpot King version. The difference pays for access to the shared pots.
On £100 of spins, that's an expected loss of £4.00 in the standard edition against £5.01 in the jackpot edition. You're paying about £1 more per £100 for a small chance at a much larger prize. Wizard of Odds' slot guide (opens in a new tab) makes the related point that a progressive's overall return rises as its pot grows, so a pot sitting near its seed value gives lower value.
This is worth knowing in the app because two games with near-identical names can sit side by side in the lobby. Check the title and the RTP on the help screen before you start.
How to compare a jackpot in the app and on the website
If you suspect an app shows a smaller jackpot, you can check it yourself in a few minutes.
Open the same game in the app and in a browser on the operator's website, logged in to the same account.
Compare the game titles exactly, including words such as “Jackpot King” or “Megaways”.
Open the help or information screen in both and compare the RTP figures.
Read the jackpot rules for the seed value, any ceiling and the qualifying stake.
Compare the live jackpot values; allow a moment for both screens to refresh.
If the figures still differ, ask live chat and keep a screenshot.
Casino apps for slot players with a welcome offer
Jackpot pots don't depend on which partner app you pick, but the welcome offers do differ. Each gives spins on selected slots, not on jackpot games specifically. 18+; terms apply.
Partner welcome offers at a glance
App
Offer and key terms
Spin value
Coral
New players: deposit (some methods excluded) and bet £10+ on slots for 100 free spins on selected games; accept in 48 hours, use in 7 days; no wagering on winnings; runs 1 Oct 2026 to 1 Feb 2027. Neteller, PayPal, Paysafe, Skrill, prepaid and certain debit cards don't qualify.
100 × 10p = £10
Ladbrokes
New customers: deposit and spend £10+ on slots for 50 free spins a day for 10 days (max 500) on selected games; claim by 23:59 daily; valid 7 days; no wagering. Prepaid cards, PayPal, Paysafe, Neteller, Skrill and Moneybookers excluded.
Up to 500 × 10p = £50
PlayOJO
New UK customers (not Northern Ireland): first deposit of £10+ for 80 free spins on Big Bass Bonanza; no wagering, winnings paid in cash; not combinable; designated offer link only.
80 × 10p = £8
Coral and Ladbrokes share an operator, LC International Limited, so you may not be able to open new accounts at both.
Free spins in these offers are on selected slots and aren't jackpot-specific. 18+, terms apply.
Coral and Ladbrokes are both run by LC International Limited (Entain). If you already hold an account with one Entain brand, you may not be able to open another; check the terms first.
Significant terms: 18+. New players only. Offer runs 01/10/2026 to 01/02/2027. Deposit (certain types excluded) and bet £10+ on slot games to get 100 free spins (selected games, £0.10 each, 48 hrs to accept, valid 7 days). No wagering on free spin winnings. Deposits by Neteller, PayPal, Paysafe, Skrill, prepaid cards and certain debit cards do not qualify. Restrictions and T&Cs apply. GamCare.org.uk
Read our Coral app reviewLicence: LC International Limited, Gambling Commission account 54743. Offer checked 5 October 2026.
Time limitClaim daily for 10 days; each batch valid 7 days
Worked valueUp to 500 spins at £0.10 (up to £50 in spins)
Significant terms: 18+. New customers only, from 14/11/25 until further notice. Certain deposit methods excluded. Deposit and spend £10+ on slots for 50 free spins a day during the first 10 days after first deposit and registration (max 500, £0.10 each, selected games, claim before 23:59 each day, valid 7 days). No wagering. Prepaid cards, PayPal, Paysafe, Neteller, Skrill and Moneybookers deposits do not qualify. Restrictions and T&Cs apply. GamCare.org.uk
Read our Ladbrokes app reviewLicence: LC International Limited, Gambling Commission account 54743. Offer checked 5 October 2026.
Significant terms: 18+. New UK customers (excluding Northern Ireland). First deposit only. Minimum deposit £10. 80 free spins on Big Bass Bonanza, £0.10 each. No wagering requirements; winnings paid in cash. Cannot be used with any other offer. Only available to players who arrive through the designated offer link. Full T&Cs apply. GamCare.org.uk
Read our PlayOJO app reviewLicence: Skill On Net Limited, Gambling Commission account 39326. Offer checked 5 October 2026.
18+. Every casino game has a built-in house edge, so over time you should expect to lose what you stake. Set a budget before you play and stop when it’s gone: safer gambling tools and support. Free, confidential help: National Gambling Helpline 0808 8020 133.
Frequently asked questions
Is the jackpot on a casino app the same as on the website?
For a network or studio progressive, yes. The pot is one figure fed by stakes from all players and all devices, and RTS 9 says eligible players should see current values. A brief difference between screens is usually a refresh delay. Fixed jackpots depend on your stake, not the device. If in doubt, compare the help screens on both while logged in to the same account, as described in is the casino app the same as the website.
Is RTP lower on casino apps?
Not by default. RTP is set by the game version the operator chooses, and the same account normally gets the same version in the app and in the browser. Some slots exist in several RTP settings, such as Genie Jackpots at 96.49% or 92.73%, so check the help screen in the app rather than trusting a figure from elsewhere. Our page is RTP lower on casino apps explains how to check.
Why does a jackpot look smaller in my app?
The likeliest reasons are a refresh delay, a different game edition, or a stake-based fixed jackpot. Some lobbies show a standard and a Jackpot King version of the same slot, and fixed jackpots are often shown at your current stake. Check the exact title, the RTP and the jackpot rules on the help screen. If the figures still don't match, ask live chat. Our jackpot slots guide explains the pot types.
Do jackpot versions of slots pay less?
The regular part of the game often does. King Kong Cash Even Bigger Bananas lists 96% RTP in its standard edition and 94.99% in its Jackpot King edition, so on £100 of spins the expected loss is £4.00 against £5.01. The difference funds the shared pots, which few players ever win. See what Jackpot King is for how that network works.
Does a bigger stake give a bigger jackpot?
For fixed jackpots, usually yes, because they're a multiple of the stake: Wolf Gold's 2,500× maximum is £250 at 10p and £5,000 at £2. For progressives, the pot is the same but RTS 9 says your chance should rise with your contribution. Either way, a bigger stake means a bigger expected loss per spin, and slot stakes are capped at £5, or £2 for 18 to 24-year-olds. See the slot stake limit on apps.
Do jackpots have a maximum?
Some do. RTS 9 requires the rules to state the seed and any ceiling values, and to explain what happens to contributions once a capped pot reaches its ceiling. Jackpot King Deluxe, for example, made its Royal and Regal pots “must be won” before reaching £3,500 and £35,000. Others, such as the top Jackpot King pot, have no stated cap. Our progressive jackpot glossary entry covers the terms.
Are jackpots smaller on a tablet than a phone?
No. Tablets, phones and computers all reach the same game servers and the same pots. Screen size changes how the game is laid out, not what it pays. The things that affect jackpot value are the game version, your stake and the jackpot type. Our page on phone versus tablet play covers the practical differences, such as layout and battery use.
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