Eye for an Eye

Most apps aim to enhance our quality of life. Here's one that lets you improve someone else's: Be My Eyes is a new iPhone app out of Denmark designed to help blind people with daily tasks. If a blind user in a supermarket wants to find out when a carton of milk expires or to distinguish between two canned foods, for example, he or she can request assistance through the voice-controlled app. Good-natured sighted people sign up and are notified when someone needs help. The first available helper is paired with the person asking for assistance, and they then sort out the issue through video chat. Some 4,000 people have been helped thus far. About 13,000 signed up on the day the app launched, and helpers currently number more than 54,000. —Michael Dukas

Tags: lifestyle