Android: If you're curious about how tall or how far away a building is but don't have the means to measure it, 99 cent app Advanced Ruler Pro will use your phone's camera and accelerometer to give you an estimate. More »
Advanced Ruler Pro Measures Large Distances With Your Smartphone [Downloads]
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Android: If you're curious about how tall or how far away a building is but don't have the means to measure it, 99 cent app Advanced Ruler Pro will use your phone's camera and accelerometer to give you an estimate. More »