Phone + tablet - same account problem

I have tablet samsumg smt 113. I am using a gmail account for it.

Tablet has not simcard support.

Now i have also an android phone, ace 2. I made same email for the device. It brought some apps only.I did not want it to bring apps but no prob lem for me, i can delete some of them.

In phone i will use some sms applications for example, this will also go to tablet automatically?

Or if i delete some apps from phone, it willbe deleted from tablet?

USing different email is better?

 

If i choose sync app data, it installs...