Below are the steps to use iTools to capture console log of an iOS Application:
1. Download and install the latest iTools application
2. Open the iTools, it will appear like below screen
3. Now connect your iOS device with the laptop/computer
4 Below will be the screen with all the info of your device
5. Click on Toolbox(Icon link on top right side of iTools)
6. Click on Real-time logs and you will see the device console logs
7. Click on save button to see the logs and attach them in bug/defect
Note: Do no use console log for long duration as iTools hangs when used for more than 1 hour