【實用工具app】HowFarZoom|最夯免費app-綠色工廠好玩App

HowFarZoom is an app to calculate distance of an object simply by taking two photos!

Unlike other distance calculating apps, you don't need to know how big, or how tall, or how wide the object is!

All you need to do is take a photo of the object, move towards the object by a known distance and take a second photo. After setting some markers in the photos, the app will tell you how far the object is!

HowFarZoom works on the principle that objects will appear larger in photos as you get closer to them. A bit of fancy mathematics converts this increase in size into the distance the object is from you.