This one’s got us raising an eyebrow: an app that figures out not only the distance to an object, but its speed — for a buck. From the app’s press release: Employing the device’s three-axis gyro and ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." But the primary purpose of any decent detector is to sniff out various types of police radar—X, K, and Ka ...