【實用工具app】Army Knife|最夯免費app-綠色工廠好玩App

A Swiss Army Knife for your iPhone, the ultimate toolbox for difficult situations!The app provides:• Embedded compass that calculates your geographical coordinates and heading. You can share them easily via e-mail.• Night Vision Effect that produces hight contrast and brightness green-monochrome images that you can easily save them to your photo library!• Sound meter that measures SPL with high accuracy! Max, min, Leq readings are provided.All in one app, simple, handy, efficient!