I am trying to set up WhatsApp on my computer (Mac running OS X El Capitan version 10.11.6). I am told to "select WhatsApp Web" in my iPhone settings. But there is no "WhatsApp Web" anywhere. The iPhone is running iOS 11.3.
Browse to https://web.whatsapp.com/. You should see something like the following, with a QR code at right:
Open WhatsApp on your phone
- Go to Settings->WhatsApp Web/Desktop
- Scan QR code with your phone
I just discovered on 'WhatsApp Messenger Version 2.18.380' is that when you click on the three dotted line, 'Whatsapp Web' is on there as an option. So, you don't need to go into Settings. Once you are on there, Scan your QR Code.