Been using Single Bet Calculator for the best part of a year, usually on my phone during the commute, so this is just my experience. Their lobby's bigger than I expected — somewhere around 2,500 titles going by the counter, with the big names present: Play'n GO, Big Time Gaming, Microgaming. Gates of Olympus and Sweet Bonanza are the ones I keep going back to, although the older NetEnt slots feel less brutal.
Their sign-up deal is 100% up to ?500 with 75 free spins, with wagering at 40x which isn't the worst I've seen. Not gonna lie, it took me longer than I'd have liked — the spins expire in a week on the spins, and that caught me out. A no deposit offer floats about too — around ?10 for verifying your account, nothing life-changing but free is free.
Live section is where I actually spend most of my time. It's Evolution running it, meaning you've got actual dealers, a fair few blackjack and roulette tables, plus stuff like — Crazy Time, Monopoly Live, that lot. Never had a stream drop on me, and that matters when you're on the train. Worth a look at the up-to-date terms over on <a href=https://cphft1916.forumattivo.com/#f13>double bet calculator</a> rather than trusting my numbers.
Cashouts at Single Bet Calculator land faster than I expected — e-wallet took about a day both times, card withdrawals took closer to three days. They take the usual cards, Skrill, Neteller, plus crypto, minimum's ?20. My first withdrawal got stuck in checks — passport and proof of address and nobody chased it until I did.
Took maybe three minutes to open the account, properly licensed for UK players with all the safer gambling tools baked in. There's no dedicated app, but the site scales fine on Android and iOS though an app would be nicer. The live chat at Single Bet Calculator answers within a few minutes usually, though you have to get past the bot first. Human staff sorted my query in one go.