These applications use the viewfinder on a mobile phone to access enhanced digital information. The iButterfly app that the Dentsu advertising agency created in Japan lets you track and 'find digital butterflies using your iPhone GPS and camera. Hold your iPhone camera up at designated spots and when you look at your surroundings through the camera, you’ll see animated butterflies flappin by. Each iButterfly contains coupons for nearby businesses. eBay’s Fashion app "See It On’ allows the user to virtually try on sunglasses in real time. The app uses facial recognition to identify users and apply virtual sunglasses to their video images. Users are able to adjust the fit, and choose different styles, frames, lenses, and colors, to find their perfect look. Within the app they can then browse through eBay to find the perfect pair at the perfect price.