With an amazing array of technology packed into one portable package worthy of James Bond, Spyglass is a complete outdoors navigation toolkit that fits in your pocket. Available for iPad and iPhone, Spyglass provides al fresco enthusiasts with binoculars, a milspec compass complete with maps, gyrocompass, tactical GPS receiver, waypoint tracker, speedometer, altimeter, celestial body finder, gyro horizon, rangefinder, coordinate converter, sextant, inclinometer, and angular calculator. Each instrument is more than just fluff: they’re all real state-of-the art tools made for hard use, even if your bare phone isn’t. Long story short, if you need more than what Spyglass offers, you’re screwed.

Get it off of iTunes – $4