sharing google calendar on apple calendar
I would like to share my work calendar, which is on a google calendar, with someone who uses the Apple calendar on iphone. I want to keep appointment details private/hidden, but just show if I'm busy or not. Is it possible to have my google calendar show on someone's iphone calendar (not the google calendar app) without adding the calendar as an account on their phone?
MacBook Pro (13-inch Mid 2010), iOS 9.3.1