How We Rate Bonuses
We don’t rate brands — we rate offers. Every casino bonus and free bet is analysed using probability modelling to show what it’s actually worth after terms, maths, and real play.
Casino Bonuses
Value is driven by RTP × wagering × max cashout. A £100 bonus with 35x wagering at 96% RTP typically returns about £60 — if you can withdraw it.
See full methodologyFree Bet Offers
Value is driven by conversion rate × restrictions × usage probability. A £30 free bet typically converts to £18-21 of withdrawable cash.
See full methodologyHow We Rate Casino Bonuses
Six metrics weighted by real-world impact on your expected return.
How much can you actually withdraw?
Entry cost to claim the offer
How many times must you replay the bonus?
Days to complete wagering requirements
Are conditions clear and fair?
Probability-adjusted expected return
Real Example: Kitty Bingo £5 Deposit Bonus
The Offer
- Deposit £5, get 50 free spins
- Spins valued at £0.10 each = £5 total value
- Max win capped at £50
- 4x wagering on winnings
The Maths
Verdict: Low 4x wagering makes this a good-value offer. The £50 cap is fair for a £5 deposit.
Overall Casino Score
Weighted average of all six metrics
Licensing, games, payments, speed
How We Rate Free Bet Offers
Free bets are scored on conversion probability — how much of the headline value becomes withdrawable cash.
Stake returned? Market restrictions?
How hard is it to qualify?
Min odds, singles allowed?
Wagering on winnings? Cashout caps?
Days to use the free bet
Expected conversion rate
Real Example: Bet £10 Get £30 Free Bet
The Offer
- Bet £10 on any sport at odds 1/2 (1.5)+
- Get £30 in free bets (3 × £10)
- Singles allowed
- Stake not returned on free bets
The Maths
Example: Put £10 free bet on Man United at 2.5 (6/4). If they win, you get £25 (not £35, because stake isn’t returned). Expected value per £10 free bet ≈ £6.50-7.
The Three Things That Matter Most
A £10 free bet at 5/1 pays £60 if stake returned, only £50 if not. This single factor swings value by 20%+.
Acca-only free bets have much higher bust rates. Singles give you control over conversion.
High minimum odds (2.5+) drastically reduce your ability to extract value from the offer.
Overall Bookmaker Score
Weighted average of all six metrics
Odds, payouts, markets, reliability
See Our Ratings in Action
Browse all analysed offers ranked by real-world value, not marketing hype.