Guess anybody's age. Or better yet, let the iPhone guess it. Pass the phone to a friend and ask him to look at 4 screens and say if their age is displayed. Then ask him or her to solve a simple mathematical calculations (like how much is 4+2) and then allow the iPhone to scan their mind and tell them their age. No worries, they do not have to reveal it to you. Have a look at a video on our website for more details.