How to use your iPhone as a level

You can use your iPhone as a level to determine whether an object near you is level, straight, or flat (measurements are approximate).  Here’s how:

° Open Measure.

° Tap Level, then hold iPhone against an object, such as a picture frame.

1. Make an object level: Rotate the object and iPhone until you see green.
2. Match the slope: Tap the screen to capture the slope of the first object. Hold iPhone against another object and rotate them until the screen turns green.
   To reset the level, tap the screen again.

(This how-to is based on my experiences and info on Apple’s support pages — where the images sometimes come from.)