title: auto-renew subscription in-app billing google play
body: <p>This is my first time to deal with in-app billing in android, I want to know If I want to use monthly subscription to my application, is the option of auto-renew subscription in on by default, or user should do something in his/her google wallet account to allow auto-renew subscription in my app</p>
  
  <p>Thanks.</p>