I see you are interested in social calendar for 2017.
You should try “ Timenote - social tool “ , you will love it !
Timenote is a mobile app, the first social calendar online since 2015. Follow what you like and don’t miss an event! Timenote does also synchronisation like Sunrise, with Google calendar, Outlook, FB…

You should try “ Timenote - social tool “ , you will love it !