How do I sync or unsync my phone and app calendar?

If you use an iPhone:

Go to your Settings and select “Privacy”.
   

Select “Calendars”.

Use this AppClose button to turn auto-sync on or off. 

If you use an Android:

 Go to your Settings and select "Applications".

Select “AppClose”.

Scroll down and select “Permissions”.

Use this calendar button to turn auto-sync on or off.