inCarDoc Download link:App Store “inCarDoc OBD2 ELM327 Scanner” (apple.com)

NOTE:
Just enable Bluetooth settings on your iOS device.
DO NOT Need to connect Bluetooth Name on iOS device.
Then connect the Bluetooth device name in the OBD app setting.

Step1:
Open the app and click on the button in the top left corner.


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Step2:
Click on:"Settings".





Step3:
Click on "Connection type" to select the connection method.





Step4:
Select "Vgate" for connection mode.





Step5:
After selecting the correct connection type and returning to the home page.





Step6:
Click on:"Connect".





Step7:
Connected successfully.