No matter who you are or where you’re from, at one stage or another you’ve turned to your friend and started a sentence with "I bet you…".

Normally the pattern will go something like this: you come up with a random bet, you have a challenge of some sort in mind, you complete the task required and you win the bet. Do you ever really see that money? No, probably not. Did you intend to pay up if you lost? Unlikely.

Well, those days are now behind us as a civilisation with the new BetYou app. It allows you to have a wager with your friends on anything from them being late to work tomorrow, to getting them to put their money where their mouth is when they’re slagging off your favourite sports team, or your fantasy football skills. If you can think of it, you can bet on it, and it couldn't be easier to use.

Of course you can find a whole pile of creative and constructive ways to use it, like challenging your friends in a fitness competition, or bet on how long you could go without eating a bag of chips to test your resolve. The only limit is your imagination…and whether or not you think you’ve got it in you to win that fiver. That way, you can avoid having to do an incredibly embarrassing forfeit, like this poor guy. Bet You he wishes he knew about the app before picking up the phone...