So — have been messing about with this thing for maybe four months now and it's stuck on my phone, reckon I'd chuck my thoughts in since someone asked me the other day. Am based in the UK, generally do football and horses, nothing mad, for context.
The reason I started using it was actually a bit daft — I could never figure out what an each way payout actually was when the place terms changed. Basically I'd guess and then be surprised. Now stick my stake in before I place anything, even a straight one-selection punt.
Their single bet calculator is the one I open most — you drop in the price and your stake and it spits out profit and total return instantly, fractions or decimals. Same tool covers the bigger stuff — trebles maths, lucky 15s, yankees, and that's where I'd always lose track. If you want a look, it's over at no vig fair odds calculator and it's free with no account nonsense.
One thing that actually changed how I bet were the geekier extras. The probability thing that shows the overround, plus a kelly tool — I use half kelly since full stakes are terrifying. Dutching calculator gets used a fair bit for when I'm covering two or three runners.
It's not perfect mind. The layout is a bit basic — zero polish, looks like it was built by someone who cares more about maths than colours. On my phone it's fine although the bigger tables need a bit of scrolling. There's no app, it's a website and that's it — fine by me just flagging it.
Right, that's me. Costs nowt, no ads shoved in your face, does the job. If you still does the maths on paper, give it a go — saves me a load of arguments with the bookie.