Smart Tools - Flashlight, Level, Protractor, Ruler, Compass, Metal Detector, Sound Meter, Vibration MeterBy Esteve Fiol Sastre ( Free )
You do not always have at hand the measuring instruments you need. But your iPhone is always with you "Smart Tools - Flashlight, Level, Protractor, Ruler, Compass, Metal Detector, Sound Meter, Vibration Meterr" app will ...