Talk about a perfect pairing! Kate Bosworth, who is well known for her on-point personal style, has partnered up with Samantha Russ to create Style Thief, an iPhone app that allows you to “snap and steal” someone’s clothing item by taking a photo and having the app tell you where to buy it. The duo celebrated the launch of their new project at Chateau Marmont in Los Angeles yesterday, where Bosworth gushed about why she loves (and actually uses!) the app.

“I used Style Thief to find the dress I’m wearing. I saw it online somewhere, took a screenshot, and sent it to the app,” Bosworth, in a floral print Red Valentino dress and ankle-tie Bionda Castana pumps, tells InStyle.com. “This is what I love about the app! You can take a screenshot of a jacket on the cover of a magazine, and if it’s not available yet, you can still be on trend and find something similar.”

When it came to her ensemble for the event, Bosworth had a specific look in mind that Style Thief helped her achieve. “My goal was to bring a more romantic, English country side vibe to this dress because of the florals. That’s why I have the braid, too, which took a minute to get just right,” she says. “I wanted to carry in some romance instead of going too bold with the makeup, I wanted it to feel kind of lived in. There’s something very garden party to it.”

Style Thief App

Courtesy Photo

Style Thief features a simple, user-friendly design that allows you to take a picture from virtually any source—a stranger walking down the street, a rack in a store, the pages of a magazine, or even a favorite fashion blog or another website—and then browse the same or similar items and buy them. In the future, Bosworth plans to curate special collections for the app, and hinted Style Thief merchandise could be a possibility down the line.

Take the guesswork out of “Where can I get that?” and download Style Thief for free on iTunes now.

Want more Kate Bosworth? See her best jet-setting style in our gallery!

With reporting by Matt Donnelly