To measure elevation on your iPhone, you can use the built-in Compass app. Here’s how:

  1. Launch the Compass app: Locate the Compass app on your iPhone. By default, it’s usually found in the Utilities folder on the home screen. Tap on the app icon to open it.
  2. Calibrate the compass (if prompted): When you open the Compass app for the first time, you may be prompted to calibrate it. Follow the on-screen instructions to move your iPhone in a specific pattern to calibrate the compass accurately.
  3. Switch to the Level tab: In the Compass app, swipe left to switch to the Level tab. The Level tab provides both a compass and a leveling tool.
  4. Hold the iPhone against a surface: Position your iPhone against the surface whose elevation you want to measure. You can hold it against a wall, a tabletop, or any other object whose elevation you wish to know.
  5. Observe the elevation measurement: As you hold your iPhone against the surface, the elevation measurement will be displayed on the screen. It will show the angle in degrees indicating the elevation of the surface.

Note: The accuracy of the elevation measurement may vary depending on the sensors and calibration of your iPhone. It’s always a good idea to cross-reference the measurement with other sources or tools for more precise results if needed.

That’s it! You can now use the Compass app on your iPhone to measure the elevation of different surfaces.