Nice guide, thanks for sharing.
But I prefer Phone Transfer, you may google to get one.

Transferring Contacts Through iTunes:

iTunes allows you to sync your iPhone contacts with your Google account. Synced contacts include the contact picture, email address and any information stored. In order to use this transfer method, you need to have iTunes installed on your computer, and access to the Internet.

1. Open iTunes on your PC
2. Use the proprietary USB cable to connect your iPhone to your computer
3. After it successfully connects, the iPhone will appear in iTunes. Click it and go to the "Info" tab
4. Mark the check box next to "Sync Contacts With", and select "Google Contacts" in the drop-down list
5. Enter your Google account's log in details, if you haven't registered an account before. Otherwise, you can go to "Configure" and choose an existing account
6. Click "Apply" and the syncing process will commence
7. On your LG device, register the same Google account and set it so that it can sync contacts with your smartphone. NOTE: if you need to add the account, go to "Settings" > "Accounts" and follow any self-explanatory steps

Transferring Contacts Through iTunes:

The iCloud back up service can be used to export contacts to an Android device via email. Assuming that you have activated the service on your iPhone before, then your contacts should be stored on your iCloud account. For this method, you need a computer with Internet access.

1. On your computer, launch the Internet browser and go to https://www.icloud.com/
2. Sign in with your iCloud account and click "Contacts"
3. Select the contacts that you wish to export
4. Click the icon depicting a cog wheel, and choose to "Export vCard"
5. The VCF file containing your previously selected contacts will be downloaded on your computer
6. Import the file to "Google Contacts". Alternatively, you can skip this step, and perform the next one instead:
7. Connect the G Pro Lite Dual to your computer. Copy the VCF file to the phone's "sdcard" folder. Then, launch the contacts application and use the "Import / Export" function to import the vCard file's contents in your phone book

Transferring Contacts Using "My Contacts Backup":

"My Contacts Backup" is an iOS application that allows you to easily transfer your iPhone contacts to an Android device via email. This method doesn't have any steps requiring access to a computer.

1. Install "My Contacts Backup" on your iPhone, via the App Store
2. Open the application and tap "Backup". This will create a VCF file containing your iPhone contacts
3. After the file has been created, tap "Email" to attach the file
4. Enter your own Gmail address as the recipient, and send the email
5. On the G Pro Lite Dual, open the email and download the vCard file. Import the contacts using the contacts app and "Import / Export"

Transferring Contacts Using "Send Anywhere":

Last but not least, you can use the "Send Anywhere" iOS and Android app to transfer your iPhone contacts. This app performs contact (and file) transfers using a P2P connection, so there's no need for a computer.

1. Install Send Anywhere on the G Pro Lite Dual through the Play Store
2. Download the app on your iPhone as well (via App Store)
3. Launch the application on both smartphones
4. On the sender device (the iPhone), tap "Send" > "Contacts"
5. Mark the contacts that you want to transfer, and when ready, tap "Send"
6. Lastly, select a method of transfer. For instance, you can tap "Generate QR Code" and scan it with your G Pro Lite Dual in order to receive the contacts. You can also tap "Receive" on the LG device and input the random code generated on the iPhone