Here www.obd2reader.com show the guide of how to read trouble codes with BlueDriver and share or save scan.
While your vehicle is running launch the blue driver app wait a moment for the connection to your vehicle to complete.
Then tap read codes. The scan will complete in a few seconds.
One of the great features of blue driver is that it gives you the ability to easily share and save all your vehicle data. For example you can perform a scan in New York using your phone and have it instantly saved on your computer back to your house in Los Angeles. You can even share your scans with your mechanic or friends via email or social media for discussion if you desire to save or share your scan.
Tap share then select the way you want to share your file
Note that for iOS you need to enable Dropbox first by tapping the Dropbox icon on the share menu. However sharing via email doesn’t require a Dropbox account.