Users who have downloaded the app simply find the images in magazines or online, then hold their smartphone with the app open over the code found on the image.
The model’s clothes will instantly disappear - leaving her in the underwear (and, cleverly, details on where to buy it), the Daily Mail reported.
The Wonderbra Decoder app is part of the brand’s new marketing campaign that hopes to provide users with a more interactive experience.
App users can scan multiple dressed images of Cernanova to reveal the different Wonderbra behind her look and view a gallery of recommended Wonderbras for different outfits, from daywear to special occasions.
The campaign will run throughout October and November and is timed for the run up to the Christmas party season.
“Wonderbra offers a bra for all occasions and we want to highlight this in a fun and original way,” Martina Alexander, Marketing Manager for Wonderbra UK, said.
“Our new App for fashion-conscious girls, reveals the recommended Wonderbra for different looks to help her enhance any outfit,” she said.