Is the above situation similar to you? I searched some popular forums and I found that many iPhone users have the same problem concerning the contacts transfer between iPhone and Outlook. Then an idea occurred on my mind: why not write a tutorial about it? Because I once had the problem and finally I successfully synchronized iPhone contacts to Outlook. I am willing to share my experience now.
ITEMS you need: iPhone, computer, iTunes, iOS Transfer.
Free download iOS Transfer and follow the steps given below to sync iPhone contacts to Outlook easily and effortlessly.

Note: You can move contacts from iPhone 6 running iOS 8 and later to Outlook with iOS Transfer.
Easy way: How to Sync Contacts from iPhone to Outlook?
• Step 1: Connect your iPhone to the program
To start with, install the program and run it. Then connect your iPhone to your computer using the supplied USB cable. Your iPhone will appear in the program's main window.
Note: Make sure iTunes is installed on your system.

Note: To complete the task successfully, you need to install iTunes on your PC first.
• Step 2: Export iPhone contacts to Outlook
In the left side of the window, click Contacts. Then choose your iPhone memory's contacts or an account, like iCloud in contact category. Next, you will see the contact management window. Select the contacts you want and click the button "Import/Export". You can choose "Export Selected Contacts" or "Export All Contacts" in its drop-down list. And then select "to Outlook Express" or "to Outlook 2003/2007/2010/2013".

Note: During the transfer, you should make sure that your iPhone is connected to iOS Transfer.
The whole process won't take much time. When the exporting is complete, your iPhone contacts are on you Outlook. Apart from transferring contacts from iPhone to Outlook, iOS Transfer can move iPhone contacts to iCloud, Exchange, Yahoo. Try other synchronization now!
Here you can also click on the below buttons to take the trial version.

Related Guides & Articles
• How to Transfer Contacts from iPhone to Computer
• How to Transfer Photos from iPhone to Computer
• How to Transfer Contacts from iPhone to iPhone

