Right — have been messing about with this thing for maybe four months now and I keep coming back, so figured I'd write something up since a mate asked me the other day. Am UK based, mostly stick to footie and the horses, small stakes, just so you know where I'm coming from. What got me on it was genuinely a bit daft — I never could figure out what an each way payout would be with 1/5 odds a place. I used to just eyeball it and get a shock. Now type the odds in before I place anything, even a simple single bet. Their single bet calculator tool is the part I open most — you put in your stake, the odds and you get profit and total return with no faffing, fractional or decimal, doesn't matter. Same tool covers the fiddly ones — doubles and trebles maths, a lucky 15, patents and yankees, which is where I'd always mess it up. If you fancy a poke about, it's here match betting odds finder and there's no login wall, which I appreciated. The thing that genuinely changed how I bet were the more serious tools. The probability converter and it makes obvious what margin's baked in, and there's the kelly criterion tool — I run quarter kelly since full stakes are a quick route to a dead bankroll. The dutching one gets used a fair bit for when I'm covering two or three runners. It's not perfect mind. Its layout feels a bit basic — zero polish, looks like it was built by someone who cares more about maths than colours. On mobile it works but the bigger tables make you pinch and zoom. Also there's no app, it's a website and that's it — doesn't bother me but you asked. So yeah. Free, not plastered in adverts, does the job. Anyone who even now adds it up in their head, try it — it's saved me a load of "wait, that's it?" moments.