We've seen some app developers try to get money for nothing - or very little at least - in our time, but we're astounded to see a simple YouTube player app called "YouTube player deluxe" that costs a penny shy of £725. What's most amusing is that the size of the program is just 792KB, so that's nearly a pound for every kilobyte of executable code. Impressive.

We'd love to tell you if it's worth that princely sum, but sadly, unlike most Windows 8 apps, there's no free trial available here. From what we can tell, it just plays YouTube videos - like countless other free apps on Windows 8.

Of course there are plenty of apps that cost a lot of money, but actually offer something in return. For example, Rafa Benitez's football coaching app costs £300, but that's aimed at professional coaches working in a multibillion-pound industry. Oh,and there's a consumer version for just £4.99!

There are also apps for the super-wealthy that offer concierge services. These are priced at Apple's top rate of $999.99, with VIP Black also charging on top for the time you use its services. But then, if you're rich enough to drop £600 on an app, then your time is likely to be significantly more valuable to you. You also need to be able to prove you're worth more than a million quid, before they'll let you use this app.

And you could argue that there have been apps that do a lot less, that cost a stupid amount of money. There was "I am Rich" which cost $999 and simply displayed a motto and a glowing red emblem. Eight people bought that one, before Apple yanked the plug. The developer said two people asked for a refund, which he gave. To be fair, despite the criticism this app is no worse than the things some people waste their money on.

There are plenty of other specialist health apps, and dentists and cosmetic surgeons seem to have apps that cost the Apple mandated maximum too. But when you're a private healthcare specialist, a few hundred quid is a drop in the ocean-going yacht's swimming pool.

We don't know if the pricing here is a mistake, or some chancer trying to strike it rich from someone who has lots of money and little patience for reading what things cost. Either way, it's there for all to see, just search for YouTube player deluxe and get your American Express Centurion card out, ready to pay.

UPDATE: The developer of the app has got in touch to claim that is was a mistake:

"I am the developer of the Youtube Player Deluxe. I want to let you know, that I am not a deceiver...the price is an accident and the app is no scamware. Maybe you can add such a hint in the article."