Vodafone lost its way with the app after renaming it Vodafone 360. Zyb was another good one, but was shut down after it was acquired by Vodafone. There were a few cloud-based contact management services, including Nokia’s, that have shut down. Or you may have a second phone to which you would like the contact list to be transferred. Even if you are not changing your phone, there is the likelihood of you deleting the contacts by mistake. The imported contact list may end up getting jumbled. This may work with photos, videos or other files, but not always with contact info. There are those who try to export the info to their computer and from there import in into their new mobile. The problem arises when the new phone is from a different manufacturer.
Android phones, when connected to your Google account, automatically do it. You can use Apple’s iTunes or iCloud to transfer info from your old iPhone to the new one. Nokia has Switch that transfers info to the new phone through Bluetooth. If you are upgrading to a phone from the same manufacturer or to one that runs the same operating system, the task is easy.
He has to transfer the contacts (and other info in the phone) before he gives it away, because once the phone is gone, he will lose access to his contact list. If he is giving away his old phone in exchange, the problem is compounded.
Whenever someone buys a new phone, or even before he buys one, the biggest dilemma is how to transfer contacts to the new phone.