【實用工具app】Dual Level|最夯免費app

Fix those crooked picture frames and resolve arguments about out of plumb billiard tables with Dual Level.

This handy application turns your iPhone into a spirit level. Has two level vials for use vertically, horizontally and face-up.

Calibration is available for face-up, horizontal and vertical operations - each stored independently.

To calibrate, just hold you iPhone against a flat or vertical surface and press the Calibrate button. You should do this for vertical, horizontal and face up orientations of your iPhone.

Also available Dual Level Pro, with added features:

- Rotate the vial using finger touches

- Rotate the vial based on an existing angle

- Display more accurate angles to one tenth of a degree

- More coming

www.geometryit.com

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