emotion x brings you over 40 of the most common emotion expressions in high resolution detail, allowing you to zoom and explore the components of a smile, scowl or grimace. Use emotion x to build on your face reading skills, and to help match facial expressions and feelings. emotion x is a must have for people on the autism spectrum, and for parents, teachers and therapists too. Touch anywhere to zoom, or to reveal the emotion expression thumbnails, which may be reordered as you wish. Ideal for the Retina display.