An apparatus for capturing animal nose pattern images on a mobile device using a camera embedded in the mobile device and a mount unit attached to the mobile device that facilitates simple and secure attachment onto the mobile device. A shell unit connects and encloses a space between the animal nose and the camera of the mobile device. A lens attachment unit placed over the camera and having one or more lenses allows a regular mobile device camera to take animal nose pattern images with no internal hardware modification. An illumination unit provides additional light to improve an image quality. The mount unit is a mechanism by which the shell unit, the lens attachment unit and the illumination unit are fastened onto the mobile device.