Please do not double post. If you think that your post is in the wrong forum, ask a moderator to move it for you. I deleted your duplicate post in the "Switcher" forum.
friend of mine has a (fairly recent) iPhone (donated by his son) and has just bought an iPad Air 2- both have the latest software. The apple ID on both is the same. he assumed that Notes entries, calendar entries etc would appear on both devicesi.e. the two devices would be synchronised. This is not happening. Any advice to make this happen would be appreciated. He does not have a mac computer.
Have him turn on iCloud drive on both devices. He can do that by tapping Settings, iCloud, iCloud drive on. Then, turn on whichever options he wishes to sync: Photos, Mail, Contacts, Calendars, Notes, Reminders, Safari, and so forth.
It may take a few minutes or so for everything to sync up, but afterward it will be almost immediate when he makes new entries. And by the way, he does not have to have a Mac computer. If he has a PC, and downloads the latest iTunes for Windows, he will be able to manage both devices easily especially when attached to his PC via USB.