Distance Measure on the floor app for iPhone and iPad

Distance Measure can measure the distance from your foot to somewhere on the floor.
You can measure about 30cm (1 ft) to 10m (30 ft) distance.
Measured results may contain 3% - 10% errors. Be careful to use value.

Stand up to measure. Don’t sit down nor bend.

Distance Measure use your eye height from the floor.
Your eye height is automatically calculated from your height. For more precise, measure your eye height and input [eye height x 1.057] as your height.

Origin of the distance is just under your eye (left or right which you see your Apple Watch). Usually, it is base of thumb of your foot.

For more info, visit 
www.shuslab.com/en/