OK — been using this thing for maybe four months now and it's stuck on my phone, so figured I'd chuck my thoughts in since a lad on another thread asked me last week. Am UK based, mostly bet football and racing, a fiver here and there, so take it how you like.

How I found it was honestly pretty stupid — I could never figure out what an each way payout would be with 1/5 odds a place. I used to just guess and get a shock. These days I stick my stake in before I place anything, even a simple single bet.

Their single bet calculator tool is the part I use most — you put in stake and odds and it shows profit and total return instantly, fractions or decimals. It also handles the bigger stuff — doubles and trebles returns, lucky 15s, patents and yankees, honestly that's where I always lose track. If you fancy a poke about, it lives at <a href=https://singlebettingcalculator.uk/bet-calculator/implied-probability>implied probability sports betting</a> and it's free with no account nonsense.

One thing that actually made a difference is the nerdier extras. They've got an implied probability thing which shows you the overround, and a kelly staking tool — I stick to fractional kelly since full stakes are a quick route to a dead bankroll. The dutching one is handy too when I'm covering two or three runners.

It's not perfect mind. The interface looks pretty plain — not much flash, it's clearly function over form. On mobile it works but the lucky 63 breakdown need a bit of scrolling. And nothing on the app store, it's a website and that's it — slight shame but you asked.

So yeah. Doesn't cost anything, barely any ads, does what it says. Anyone who even now does the maths on paper, have a look — it's saved me a load of dumb bets I'd have regretted.