This app makes the NYC subway system come alive

Subway maps aren’t exactly the most gripping thing to look at while killing time. But if you’re in New York, the free app Tunnel Vision wants to use data to make the minutes go by a little faster.  Point Tunnel Vision at any MTA map, and augmented reality gives you nuggets of info about arrival times, turnstile activity (!), and even census data like rent prices and median incomes in various neighborhoods. It doesn’t even need wifi to work.