Been using Single Bet Calculator since the spring, mostly on my phone, so take this for what it's worth. Stumbled on it through a Reddit thread, nobody paid me.
 
The lobby is bigger than I expected — a bit over 3,500 titles last time I counted. Pragmatic Play takes up most of the space, so Book of Dead and the usual suspects all show up. Personally I mainly play Betsoft games out of pure habit. Small annoyance — searching for a specific slot at Single Bet Calculator is more faff than it should be, I usually just scroll and hope.
 
Live tables are almost entirely Evolution, which is fine by me. Actual dealers, the stream holds up on 4G, and the game shows like Crazy Time is rammed on a Friday. Should mention the British side is well covered from about 6pm onwards. If you're weighing up the promos I'd have a nose at <a href=https://junxypowersolutions.com/news/yankee-calculator-steps-and-methods-uk-guide-to-bonuses-payments-mobile-betting>free bet calculator single</a> instead of trusting a random forum post.
 
The sign-up deal on Single Bet Calculator is 100% up to ?200 plus 100 free spins. Wagering is 40x which is about par these days. I also got 20 no deposit spins on verification. Minimum is a tenner, sign-up took me maybe five minutes, ID check was same-day.
 
Payouts are decent. Visa and Mastercard take 2-3 days, Skrill and Neteller were same-day for me, and Bitcoin is quickest if you use it. Took out about ?250 recently with no drama. The live chat on Single Bet Calculator was on me within five minutes — human, not a bot script. They're UKGC licensed, so at least there's a complaints route. App-wise there's nothing, which is mildly annoying but the site works fine.