why is my tablet scyncronized with my cell phone?

everything that I do on my cell phone is showing up on my tablet and everything I do on my tablet is showing up on my cell phone and I am just wondering why it is doing it this way I have not set it up too do this it has done this automaticlly?

from Android Forums at AndroidCentral.com - Ask a Question http://ift.tt/2fAl3F5
via IFTTT