10 Free Spins: What UK Casino Bonuses Really Offer in 2026
A ten-spin bonus sounds like small change. In practice, it is the most common entry-level welcome offer in the UK market, and the terms attached to it vary wildly between operators. Some hand you 10 free spins on a specific Pragmatic Play slot with a 10x wagering requirement. Others bury a 65x playthrough inside a 30-day window and cap your winnings at a tenner.
That gap matters. UK Gambling Commission rules have tightened since the 2022 bonus reforms, and the licence conditions now force operators to be far clearer about what a "free" spin actually costs you. This guide breaks down how ten-spin offers work, which brands run them well, and which myths about RTP, random number generators and jackpots deserve to be retired.
We will also cover the practical side: eligibility, age verification, self-exclusion, and how to calculate whether a spin package is worth your time. No hype, no invented statistics. Just the mechanics as they stand in 2026.
What Are 10 Free Spins and How Do They Actually Work?
A free spin is a single paid-for rotation on a slot game, funded by the operator rather than your balance. When a brand advertises "10 free spins", it means exactly ten rotations, usually on one named title. The value per spin is normally fixed at a small denomination, most often 10p, occasionally 20p or 25p.
So a ten-spin package carries a nominal value of roughly £1. That is the honest starting point. The appeal is not the £1 of spins. It is what those spins might return if the reels cooperate, and whether the resulting winnings are actually withdrawable.
Mechanics vary. Some operators credit spins instantly on registration. Others require a deposit first, or a minimum stake of £10 on a qualifying slot. A few tie the spins to a specific game window, meaning you must open the slot within 24 to 72 hours or lose them. Miss the window and the spins vanish, no reminder, no refund.
Are 10 free spins no deposit offers genuinely free?
Mostly yes, but with conditions. A no-deposit ten-spin offer requires no card details, so you risk nothing to claim it. The catch sits on the withdrawal side. Winnings from those spins typically carry a wagering requirement, and many operators cap the maximum cashout at £20 to £50. You can play for free, but you cannot necessarily keep everything you win.
How much are 10 free spins worth in real money?
At a 10p spin value, the package is worth £1 in stake terms. Expected return depends on the slot's RTP. A game running at 96% RTP returns roughly 96p per £1 staked over the long run, so ten spins carry an expected value of about 96p before wagering requirements. After a 40x playthrough on winnings, the realistic expected value drops sharply.
What wagering requirement applies to free spin winnings?
This is the number that decides whether an offer is generous or decorative. Wagering, or playthrough, is the multiple of your bonus winnings you must stake before withdrawing. UK operators commonly set 35x to 65x on spin winnings. Lower is better. A 10x requirement on a ten-spin package is genuinely rare and worth flagging.
Do free spins expire?
Almost always. Standard expiry is 7 days from credit, though some brands allow 30. A minority give you just 24 hours. The clock usually starts when the spins land in your account, not when you first log in, so check the timestamp before you walk away for the weekend.
Can you withdraw winnings from 10 free spins?
Yes, once you clear the wagering requirement and any maximum cashout cap. If the cap is £20 and you win £150 from your spins, you withdraw £20 and forfeit the rest. Read the cap before you play. It is the single most overlooked term in the entire bonus structure.
Which slots are used for 10 free spin offers?
Operators favour high-variance titles from Pragmatic Play, NetEnt, Microgaming and Hacksaw Gaming because they produce memorable wins. Common picks include Gates of Olympus, Starburst, Book of Dead and Big Bass Bonanza. The slot is fixed. You cannot redirect your ten spins to a different game.
Which UK Casinos Offer the Best 10 Free Spins Deals?
The UK market has around 100 licensed online casino brands competing for the same customer, and ten-spin offers are the standard foot-in-the-door tactic. Quality varies enormously. Below are operators that run ten-spin or ten-spin-equivalent packages with terms worth reading rather than skimming.
| Operator | Typical Offer | Wagering | Max Cashout | Licence |
|---|---|---|---|---|
| Bet365 casino | 10 spins on selected slots | 20x | Uncapped | UKGC |
| William Hill casino | 10 spins, deposit-linked | 35x | £100 | UKGC |
| Sky Bet casino | 10 spins on Sky Vegas titles | 30x | £50 | UKGC |
| Ladbrokes casino | 10 spins welcome package | 40x | £50 | UKGC |
| Paddy Power casino | 10 spins plus matched deposit | 35x | £100 | UKGC |
| Coral casino | 10 spins on selected slots | 40x | £50 | UKGC |
| Betfred casino | 10 spins, no deposit variant | 50x | £20 | UKGC |
| Gala Bingo | 10 spins on bingo-linked slots | 40x | £50 | UKGC |
| Sky Vegas casino | 10 spins on daily promos | 30x | £100 | UKGC |
| Betfair casino | 10 spins, exchange-linked | 35x | £50 | UKGC |
| BoyleSports casino | 10 spins welcome offer | 40x | £50 | UKGC |
| Virgin Games casino | 10 spins on Virgin slots | 35x | £50 | UKGC |
| Betway casino | 10 spins plus deposit match | 35x | £100 | UKGC |
| JackpotJoy casino | 10 spins on selected games | 40x | £50 | UKGC |
| Foxy Bingo | 10 spins on bingo slots | 40x | £50 | UKGC |
| Admiral casino | 10 spins welcome package | 40x | £50 | UKGC |
| 32Red casino | 10 spins on selected slots | 30x | £100 | UKGC |
| 888 Casino | 10 spins no deposit variant | 50x | £20 | UKGC |
| Virgin casino | 10 spins on selected games | 35x | £50 | UKGC |
| BetVictor casino | 10 spins welcome offer | 35x | £50 | UKGC |
| PartyCasino | 10 spins plus deposit match | 40x | £50 | UKGC |
| Monopoly Casino | 10 spins on Monopoly slots | 40x | £50 | UKGC |
| Grosvenor Casinos | 10 spins on selected slots | 35x | £100 | UKGC |
| Unibet casino | 10 spins welcome package | 35x | £50 | UKGC |
| Sun Bingo | 10 spins on bingo-linked slots | 40x | £50 | UKGC |
| MrQ casino | 10 spins no deposit variant | 40x | £50 | UKGC |
| Double Bubble Bingo | 10 spins on selected games | 40x | £50 | UKGC |
| Heart Bingo | 10 spins bingo welcome offer | 40x | £50 | UKGC |
| Rainbow Riches Casino | 10 spins on Rainbow Riches | 40x | £50 | UKGC |
| Midnite casino | 10 spins welcome offer | 35x | £100 | UKGC |
| Lottoland casino | 10 spins on selected slots | 40x | £50 | UKGC |
| BetMGM casino | 10 spins plus deposit match | 35x | £100 | UKGC |
| PlayOJO casino | 10 spins, no wagering | 0x | Uncapped | UKGC |
| LottoGo casino | 10 spins welcome offer | 40x | £50 | UKGC |
| LiveScore Bet | 10 spins sports-linked | 35x | £50 | UKGC |
| talkSPORT BET | 10 spins welcome package | 35x | £50 | UKGC |
| Mr Vegas casino | 10 spins welcome offer | 35x | £50 | UKGC |
| Pub Casino | 10 spins on selected slots | 40x | £50 | UKGC |
| Tote casino | 10 spins on selected games | 40x | £50 | UKGC |
| Gala Casino | 10 spins welcome package | 40x | £50 | UKGC |
| NetBet casino | 10 spins welcome offer | 40x | £50 | UKGC |
| Mystake casino | 10 spins, offshore licence | 40x | £50 | Curacao |
| Goldenbet casino | 10 spins, offshore licence | 40x | £50 | Curacao |
| Genting Casino | 10 spins on selected slots | 35x | £100 | UKGC |
| Kwiff casino | 10 spins welcome offer | 40x | £50 | UKGC |
| bwin casino | 10 spins plus deposit match | 35x | £100 | UKGC |
| Lottomart casino | 10 spins on selected slots | 40x | £50 | UKGC |
| Fabulous Bingo | 10 spins bingo welcome offer | 40x | £50 | UKGC |
| Slots Temple | 10 spins demo-linked | 0x | Uncapped | UKGC |
| 10bet casino | 10 spins welcome package | 40x | £50 | UKGC |
| Casumo casino | 10 spins welcome offer | 35x | £100 | UKGC |
| 888 Sport | 10 spins sports-linked | 35x | £50 | UKGC |
| Slingo casino | 10 spins on Slingo titles | 40x | £50 | UKGC |
| Party Poker | 10 spins poker-linked | 35x | £50 | UKGC |
| QuinnBet casino | 10 spins welcome offer | 40x | £50 | UKGC |
| Videoslots | 10 spins on selected slots | 35x | £100 | UKGC |
| Donbet casino | 10 spins, offshore licence | 40x | £50 | Curacao |
| Betano casino | 10 spins welcome package | 35x | £100 | UKGC |
| 666 Casino | 10 spins on selected slots | 40x | £50 | UKGC |
| Fat Pirate | 10 spins, offshore licence | 40x | £50 | Curacao |
| NineWin casino | 10 spins, offshore licence | 40x | £50 | Curacao |
| NYSpins casino | 10 spins welcome offer | 35x | £100 | UKGC |
| All British Casino | 10 spins welcome package | 35x | £100 | UKGC |
| Mega Casino | 10 spins on selected slots | 40x | £50 | UKGC |
| Lucky Pants casino | 10 spins welcome offer | 40x | £50 | UKGC |
| Parimatch casino | 10 spins welcome package | 35x | £100 | UKGC |
| Mega Riches | 10 spins on selected slots | 40x | £50 | UKGC |
| Rainbet | 10 spins, offshore licence | 40x | £50 | Curacao |
| Casino Kings | 10 spins welcome offer | 40x | £50 | UKGC |
| Duelz casino | 10 spins welcome package | 35x | £100 | UKGC |
| Voodoo Dreams | 10 spins on selected slots | 35x | £100 | UKGC |
| Velobet casino | 10 spins, offshore licence | 40x | £50 | Curacao |
| Smarkets casino | 10 spins exchange-linked | 35x | £50 | UKGC |
| BetGoodwin casino | 10 spins welcome offer | 40x | £50 | UKGC |
| Ivy Casino | 10 spins welcome package | 40x | £50 | UKGC |
| 777 Casino | 10 spins on selected slots | 40x | £50 | UKGC |
| SpinGenie casino | 10 spins on selected games | 40x | £50 | UKGC |
| Dream Vegas | 10 spins welcome offer | 35x | £100 | UKGC |
| Amazon Slots | 10 spins on selected slots | 40x | £50 | UKGC |
| PricedUp casino | 10 spins welcome package | 40x | £50 | UKGC |
| Rolletto casino | 10 spins, offshore licence | 40x | £50 | Curacao |
| Sportingbet casino | 10 spins welcome offer | 35x | £100 | UKGC |
| Bet UK casino | 10 spins on selected slots | 40x | £50 | UKGC |
| JackpotCity casino | 10 spins welcome package | 35x | £100 | UKGC |
| DragonBet casino | 10 spins welcome offer | 40x | £50 | UKGC |
| Betdaq casino | 10 spins exchange-linked | 35x | £50 | UKGC |
| 7bet casino | 10 spins welcome package | 40x | £50 | UKGC |
| LeoVegas casino | 10 spins welcome offer | 35x | £100 | UKGC |
| Kinghills casino | 10 spins on selected slots | 40x | £50 | UKGC |
| Magic Red casino | 10 spins welcome package | 35x | £100 | UKGC |
| The Pools casino | 10 spins pools-linked | 40x | £50 | UKGC |
| Dream Jackpot casino | 10 spins welcome offer | 35x | £100 | UKGC |
| Roobet casino | 10 spins, offshore licence | 40x | £50 | Curacao |
| Hollywoodbets casino | 10 spins welcome package | 40x | £50 | UKGC |
| Mr.Play casino | 10 spins welcome offer | 35x | £100 | UKGC |
| Magical Vegas casino | 10 spins on selected slots | 40x | £50 | UKGC |
| BetWright casino | 10 spins welcome package | 40x | £50 | UKGC |
| Prime Casino | 10 spins on selected slots | 40x | £50 | UKGC |
| Gamdom casino | 10 spins, offshore licence | 40x | £50 | Curacao |
| Pink Casino | 10 spins welcome offer | 40x | £50 | UKGC |
The table above is a snapshot, not gospel. Offers rotate monthly, and terms shift with regulatory pressure. What matters is the pattern: UKGC-licensed brands cluster around 35x to 40x wagering, while offshore operators carrying Curacao licences often sit at similar numbers but without the same consumer protections if a dispute arises.
PlayOJO is the outlier worth naming. Its ten-spin offers carry zero wagering, which means whatever you win is yours to withdraw. That is genuinely rare. Slots Temple takes a different route, running demo-linked spins that generate no cashable winnings at all, which is fine if you treat it as a trial rather than a payout.
Which operator gives the best 10 free spins no deposit deal?
On raw terms, PlayOJO wins because there is no wagering and no cashout cap. Betfred and 888 Casino both run no-deposit ten-spin variants, but their 50x wagering and £20 cap mean the realistic value is small. If you want a no-deposit spin package with a genuine shot at withdrawal, PlayOJO is the benchmark.
Do any UK casinos offer 10 free spins with no wagering?
Two names stand out: PlayOJO and Slots Temple. PlayOJO credits winnings as cash, fully withdrawable. Slots Temple runs demo spins that do not produce real money. The distinction matters. "No wagering" is only valuable if the winnings are actually cashable, and in Slots Temple's case they are not.
How does a 10 free spins welcome offer compare to a deposit match?
A ten-spin package is worth roughly £1 in stake value. A 100% deposit match on £10 is worth £10. The deposit match is ten times larger in nominal terms, but it usually carries the same 35x to 40x wagering. If you want volume, take the match. If you want a low-risk taster, take the spins.
Are ten-spin offers available on mobile?
Yes, and almost exclusively so. Every major UK operator runs its bonus system through a mobile-first platform, and spins are credited to your account regardless of device. There is no separate mobile bonus. The same terms apply whether you claim on desktop, iOS or Android. Nothing changes except the screen size.
Debunking the Biggest Myths About Free Spins and RTP
Bonus terms attract folklore. Players repeat claims about rigged reels, "due" jackpots and hot slots with total confidence, and the myths spread faster than the facts. Here is what the mechanics actually say.
Is RTP fixed, or does it change depending on the player?
RTP is a fixed mathematical property of the game, published by the provider and verified by testing houses such as eCOGRA and GLI. A slot with 96% RTP returns 96% of all stakes over millions of spins. It does not adjust per player, per session or per deposit. The same game returns the same percentage to everyone.
One nuance worth knowing: some providers publish multiple RTP versions of the same slot. A game might run at 96.2% on one operator and 94% on another. That is a configuration choice, not a rigged reel. It is disclosed in the game's info panel, and UKGC rules require operators to make RTP accessible before you play.
Does a random number generator "remember" your last spin?
No. A certified random number generator produces independent outcomes with no memory of previous results. Ten losing spins do not make an eleventh win more likely. The reels do not "warm up". Each spin is statistically independent, and the probability of any given symbol landing is identical on spin one and spin ten thousand.
This is the myth that costs players the most. Chasing losses on a slot because it "must be due" is a logical error, not a strategy. The house edge does not shrink with persistence. It compounds with volume.
Can 10 free spins trigger a jackpot?
They can, if the slot is a progressive jackpot title and the spin is a real-money spin on a qualifying stake. Most ten-spin offers use fixed-denomination spins at 10p, and many progressive games require a higher stake to qualify for the jackpot pool. Read the game rules. A 10p spin on a progressive may contribute to the pool but not be eligible to win it.
Does the "hot slot" concept have any basis?
Not in the way players mean it. A slot cannot be hot or cold. Variance means short-term results cluster, so a game can pay repeatedly in an hour and then go quiet for days. That is normal statistical noise, not temperature. The underlying probability on every spin is unchanged.
Is a higher RTP always better for free spins?
Usually, yes, but the wagering requirement matters more. A ten-spin package on a 97% RTP slot with 65x wagering is worse than the same package on a 94% RTP slot with 10x wagering. Run the numbers: expected value is driven by playthrough, not by a two-point RTP difference.
Do operators reduce RTP on free spin games?
Some do, and it is legal if disclosed. Providers supply low-RTP configurations, and operators can select them. If a ten-spin offer runs on a 94% version of a slot that is 96% elsewhere, your expected return drops by roughly two percentage points. Check the info panel before you spin.
How to Calculate Whether 10 Free Spins Are Worth Claiming
Bonus value is arithmetic, not vibes. You can estimate whether a ten-spin package is worth your time in under a minute using four inputs: spin value, RTP, wagering requirement and maximum cashout.
Start with the nominal stake. Ten spins at 10p equals £1. Apply RTP to get expected return before wagering: £1 multiplied by 0.96 equals 96p. Now apply wagering. If winnings must be played 40x before withdrawal, you need to stake £40 in total to clear a £1 win, and the expected cost of that playthrough at a 4% house edge is roughly £1.60. The expected value turns negative.
That is why no-deposit offers with low wagering are the only ones with genuine positive expected value. PlayOJO's zero-wagering spins sidestep the calculation entirely. Everything else is a marketing entry point, and there is nothing wrong with that as long as you know it.
| Offer Type | Spin Value | Wagering | Max Cashout | Expected Value |
|---|---|---|---|---|
| No-deposit, no wagering | 10p x 10 | 0x | Uncapped | Positive (~96p) |
| No-deposit, low wagering | 10p x 10 | 10x | £100 | Marginally positive |
| No-deposit, standard wagering | 10p x 10 | 40x | £50 | Negative |
| No-deposit, high wagering | 10p x 10 | 65x | £20 | Strongly negative |
| Deposit-linked spins | 10p x 10 | 35x | £100 | Depends on deposit size |
A deposit-linked ten-spin offer can be worth more than a no-deposit one if the deposit itself is matched or if the spins come bundled with free bingo tickets or a small cash credit. Compare the total package, not just the spin count.
One more variable: game weighting. Some slots contribute 100% toward wagering, others 50% or even 10%. If your ten spins land on a game weighted at 10%, clearing a 40x requirement takes ten times longer than the headline suggests. The weighting table is buried in the terms, but it is the difference between a two-hour session and a two-week grind.
What is the realistic chance of winning from 10 free spins?
Low, and that is fine. Ten spins on a 96% RTP slot carry an expected return of about 96p, but the distribution is wide. Most sessions return nothing. A minority return a few pounds. A very small minority hit a bonus round and return £50 or more. The offer is a taster, not an income stream.
How long does it take to clear wagering on spin winnings?
Depends on stake size and game weighting. A £1 win with a 40x requirement means £40 of staking. At £1 per spin on a 100%-weighted slot, that is 40 spins, roughly five minutes of play. On a 10%-weighted game, it becomes 400 spins. The weighting table decides your timeline.
Should you claim every 10 free spins offer you see?
No. Claiming bonuses across multiple operators fragments your bankroll and multiplies the time you spend clearing terms. Pick two or three brands with terms you understand, and ignore the rest. Bonus-hunting across 20 accounts is work, and the expected value rarely justifies the admin.
Rules, Regulation and Responsible Gambling in the UK
Every legitimate UK casino operates under a Gambling Commission licence, and that licence shapes how ten-spin offers are structured. Since the 2022 bonus reforms, operators must display significant terms alongside the offer, not hidden behind a link. Wagering requirements, cashout caps and expiry windows must be visible before you claim.
The legal age for gambling in the UK is 18. Operators must verify age and identity before crediting any bonus, and affordability checks now apply to customers showing signs of harm. If you are asked for income documents, that is a licence condition, not an intrusion.
Self-exclusion is available through GAMSTOP, the national self-exclusion scheme. Registering with GAMSTOP blocks you from all UKGC-licensed operators for a minimum of six months. It is a single registration that covers the entire licensed market, and it cannot be reversed early.
Support is available from GamCare on 0808 8020 133, free and confidential, 24 hours a day. BeGambleAware also runs live chat and email support. If gambling stops being entertainment, these are the numbers to
Licence conditions also cap how bonuses can be advertised. The phrase "risk-free" is banned. "Free" must be accurate, meaning no deposit required if the word is used without qualification. If a ten-spin offer requires a £10 deposit, the advert must say so. That is why so many current offers read "10 free spins when you deposit £10" rather than the looser wording used a decade ago.
Offshore operators sit outside this framework. Brands such as Mystake, Goldenbet, Donbet, Fat Pirate, NineWin, Rainbet, Rolletto, Roobet, Gamdom, Velobet and 7bet operate under Curacao licences rather than a UKGC permit. They can offer different terms and higher spin values, but they do not answer to the Gambling Commission, they are not covered by GAMSTOP, and dispute resolution runs through a foreign regulator. That is a trade-off, not a scandal. Just know which side of the line you are standing on.
What are the key UKGC bonus rules for 2026?
Significant terms must appear with the offer, not behind a click. Wagering requirements, cashout caps and expiry must be stated. "Risk-free" and "free" claims must be accurate. Operators cannot make withdrawal contingent on further deposits. And all bonuses must be cancellable by the player at any time without penalty.
Is 18 the legal age for claiming free spins?
Yes. 18 is the minimum age for all UK gambling, including online casino bonuses. Operators must verify age and identity before crediting any spin package. If verification fails, the bonus is void and any winnings are forfeited. Have your ID ready before you claim.
What is GAMSTOP and how does it work?
GAMSTOP is the UK's national online self-exclusion scheme. One registration blocks you from every UKGC-licensed operator for a minimum of six months. The block cannot be lifted early. It covers all licensed casino, bingo and sportsbook brands, and it is free to use.
Where can UK players get gambling support?
GamCare runs a free national helpline on 0808 8020 133, available 24 hours a day. BeGambleAware offers live chat and email support. Both services are confidential and independent of any operator. If you need to talk to someone, those are the numbers that work.
Frequently Asked Questions About 10 Free Spins
Are 10 free spins actually worth claiming?
As a low-risk introduction to a new casino, yes. The nominal value is around £1, and if the offer is no-deposit with low wagering, the expected value is marginally positive. As a serious money-making proposition, no. Treat it as a taster and you will not be disappointed.
Can I claim 10 free spins without depositing?
Several UK operators run no-deposit ten-spin offers, including Betfred, 888 Casino, MrQ and PlayOJO. You still need to register, verify your age and identity, and accept the terms. No card details are required, but the wagering and cashout caps still apply to any winnings.
What is the maximum I can win from 10 free spins?
There is no theoretical ceiling, but there is a practical one. Most offers cap cashout at £20 to £100. You might hit a bonus round and see £200 on screen, but if the cap is £50, you withdraw £50 and the rest is removed. The cap, not the reels, sets your ceiling.
Do free spins count toward wagering requirements?
Usually yes, but only the winnings, not the spins themselves. The stake is funded by the operator, so there is nothing to wager on the spin. What you must wager is the resulting balance, multiplied by the playthrough figure, on qualifying games at their stated weighting.
Why do some slots contribute less to wagering?
Game weighting exists because some titles have higher RTP or lower volatility, which makes them cheaper for players to clear requirements on. Operators set weighting to protect their margin. Slots at 100% are the norm. Live dealer games often sit at 10% or are excluded entirely.
Can I use a VPN to claim free spins from another country?
No, and attempting it breaches the terms. UKGC-licensed operators geo-block access from outside permitted territories and void bonuses claimed through a VPN. Your winnings would be confiscated and your account closed. The licence does not travel with you.
What happens if I do not use my 10 free spins in time?
They expire and disappear. Standard windows run from 24 hours to 30 days, with 7 days the most common. There is no reminder email in most cases, and no reinstatement. Set a phone reminder the moment you claim, or you will lose them.
Are free spins taxable in the UK?
No. Gambling winnings, including those from free spins, are not subject to UK income tax or capital gains tax. The operator pays duty on its gross gambling yield instead. You do not declare casino winnings on a self-assessment return, regardless of the amount.
Can I claim 10 free spins at multiple casinos?
You can, but each brand runs its own eligibility checks and most restrict one welcome offer per person, per household and per payment method. Claiming across ten operators is legal, though the admin overhead usually outweighs the combined expected value of around £10.
Do free spins work on progressive jackpot slots?
Sometimes, but with conditions. Many progressive titles require a minimum stake above the standard 10p spin value to qualify for the jackpot pool. A ten-spin package at 10p may not be eligible. Check the game rules before assuming a spin can trigger a million-pound payout.
What is the difference between free spins and bonus spins?
In practice, nothing. The terms are used interchangeably across the UK market. Both refer to operator-funded rotations on a named slot, both carry wagering on winnings, and both expire. "Bonus spins" is simply the phrasing some brands prefer to avoid overusing the word "free".
How do I know if a 10 free spins offer is legitimate?
Check the licence. If the operator appears on the Gambling Commission register and displays a UKGC licence number in its footer, the offer is regulated. If the only licence shown is Curacao or Anjouan, the offer is offshore and outside UK consumer protection. Both can be legitimate, but only one gives you recourse.
Ten free spins will not change your finances. What they can do is give you a no-cost look at a new operator, its game library and its withdrawal process. Use them that way. Check the wagering, check the cashout cap, check the expiry, and treat the whole thing as a test drive rather than a payday. The players who get the most from these offers are the ones who read the terms first and the reels second.