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From IntegraSoftHN - Carlos E. Hernndez Prez:
If you like our application, please help us posting a review on how you use it, or what it helps you accomplish.Spirit Level Pro is a professional grade angle measurement tool. Some common uses are: Picture AlignmentMeasuring angles of elevation, slope, or inclineShowing the inclination of an aircraft or ship relative to the horizontalMeasuring the "look angle" of a satellite antenna towards a satelliteMeasuring the slope angle of a tape or chain during distance measurementIndicating roll of vehicles, sail boats, and aircraftRoof pitch calculation and angle measurement iOS 4 Support( Fast App Switching )Retina Display Graphicsand much more...Features:Motion sensitive lockYou can now set an approximation value, and when active, if you don't move the device for 2 seconds, it will lock the current reading automaticallyLogging measurementsThis is the first level/inclinometer application to offer logging of valuable data. You can store individual values, or you can set an interval and let the application record every movement. You can even send the results to any email you want, using an in-app email client.Sound feedbackAutolock and reference angle use audio feedback to let you know when the application has locked the current angle, or when you are near the reference angle you have set.Calibration modeThe calibration process was revamped, again. We think we got it right this time. It should be easy and fun.Different precision modesThe application can display the value in angles, percentages, rise over run, roof pitch and radians.Full screen modeWith double tapping, you can hide all the interface elements, and leave just the gorgeous image of the TiltMeter animating as you move your device.Personalize your LevelWith 8 different beautiful backgrounds, you can set the mood you want. If you have a background you would like to see in the app, send us an email, and we will be glad to add it to a feature release.Sleep mode disabledFor your convenience this application disables the auto sleep mode, when you enter this application, the device won't go to sleep. Gorgeous graphicsThis application has the most gorgeous graphics ever seen in a level app.