By now, we think everyone knows that Kate Middleton has an army of keen style followers, as the designer and high street clothes that she steps out in always seem to sell out in record time.

If you want to be kept up to speed as far as the Duchess of Cambridge’s wardrobe is concerned, then you’re going to love the brand new app Kate’s Style List that has just launched.

Kate’s Style List only costs 69p, and lets fans of the Duchess’s sartorial choices know exactly what she was wearing to a specific event, as well as where to buy the very same one. We think this app will prove quite useful for all the copy-Kate’s out there, don’t you?

The app was dreamt up by Helen Barclay, a former actress and avid Kate Middleton style fan, and was made with one of her software developer friends… and the rest is history.

“I spend a lot of my time trawling fashion websites and looking at the designers’ shows online so I can identify her pieces,” she told the Telegraph.

“I also follow a lot of fashion writers on Twitter so I know what Kate will be wearing when she next appears. She mixes high street with designer so you can find a lot of the things she wears in shops such as Reiss and Zara, which is where I buy most of my clothes.”

We have a feeling this app is going to be a roaring success; why the heck did no one think of this sooner?

[Marie Claire]