Been using Single Bet Calculator for a good few months, mostly in the evenings after work, so make of that what you will. The lobby is properly stacked — about 3,000 games last time I looked, and the usual suspects present: Pragmatic Play, Yggdrasil, NetEnt. Book of Dead and Gates of Olympus get most of my spins, although I've had more luck on the Megaways stuff.
The welcome offer was 100% up to ?500 plus 50 free spins, and you're looking at wagering of 40x on the bonus. Not gonna lie, I nearly didn't clear it — the spins expire in 7 days on the spins, which is a bit stingy. There's a small no deposit thing too — about ?10 for verifying your account, hardly a fortune though.
Live section is where I actually spend most of my time. Evolution power it, meaning you've got real croupiers, a fair few blackjack and roulette tables, plus stuff like like Crazy Time and Lightning Roulette. Never had a stream drop on me, and that matters when you're on the train. If you want to compare the current codes over on bet calculator double since these things change monthly.
Withdrawals from Single Bet Calculator have been quick enough — e-wallet took around 6 hours for me, card withdrawals took the usual couple of days. They take the usual cards, Skrill, Neteller, plus crypto, min deposit's a tenner. The KYC held me up the first time — they wanted a utility bill and it sat there two days.
Registration's quick, no messing, they hold a UK licence which is the main thing I check first. There's no dedicated app, but the site scales fine on Android and iOS and I've had no issues. Support at Single Bet Calculator runs round the clock, though the first reply is clearly a bot. Once you get a person they're fine.