My google calendar doesnt show on Macbook while is being shown on ios This is what I see on iphone:





but on macbook I do not see my gmail events. Why?



How to turn it on on both: osx and ios?
You probably haven't activated the calendar service for Gmail.

On your Mac go to settings->accounts
If your Gmail account is present then do step 1. 
If not do step 2


Click on the account-> tick the box next to calendar
Click the plus button -> select Gmail-> login -> make sure calendar is activated for that account