Knowing the instantaneous inclinaison of your iPhone is well. Record measurement readings, this is better! Advanced Gyroscope lets you export to your computer records of angular positions, velocities and acceleration.

Advanced gyroscope is very simple to use. You can:
In the main view:
• Read the instant the angular position, in degrees or radians
• Set the initial position (zero position)
In the settings menu:
• Set the sampling frequency (up to 100 measurements / s)
• Set a countdown before the beginning of the measures
• Select the format of decimal numbers ( . or , )
In the export menu:
• Display measurement readings with date and time.
• Generate a .txt file showing angular postion, velocity or acceleration
• Retrieve this file on iTunes and / or by email, then copy and paste the data to a spreadsheet software as Excel to use them.

Note:. If you open the txt using the "Notepad" in Windows, you may not distinguish columns. But you can still make a direct copy and paste into a spreadsheet software to use the data. In Windows, open rather the .txt with "WordPad". In Mac OS, it works very well with the application "TextEdit".