Ruler app is best tape measurement tool. Photo Ruler app is designed to accurately tape measure the size of any object by either taking a picture of it or to measure it on the screen.

- Tap the screen to start using the best multi-touch measuring system and find the size of all curious objects around you. And all this for free.

- Distance meter - allows to tape measure distance from device camera to a fixed point on the detected 3D plane.
- Angle - allows to tape measure corners on 3D planes.
- Area and Perimeter.
- Volume – allows to tape measure size of 3D objects.
- Path - allows to calculate the length of the path.

- Calibrate your ruler with a credit card to get you started anytime, anywhere
- Don't have a credit card with you? Calibrate your ruler with a coin!
- Calibrate your ruler with a real ruler to achieve the best precision in your measurement transfers
- Manually set the ruler to a known length for accurate measurements.