Hi Mark,
Thank you for contacting us, and I'm sorry for the issue you are experiencing. In order to sync via Wi-Fi, one of your Mac computers has to be set as the "Main Computer" in mSecure's Sync Settings. That makes that computer the server of your information that all the other apps sync with. You can find out more about setting up Wi-Fi syncing here: https://support.msecure.com/en/support/solutions/articles/36000064301-wifi-syncing
Mark
my iPhone will not sync with my desktop (the host) iMac when the sync in which WiFi is selected
I am unable to locate sync manually as I dont see where there is a spot on my phone like version 4, even on my host iMac the sync text is greyed out and unable to perform manual sync