title: implementing trial status
body: <p>I want to implement a "10 day trial status" on my application.  I found this post that was made back in 2009 (I like the 3rd methos).  Has anything changed in this area since 2009?  Is there a better way?
  Post link...
  <a href="https://stackoverflow.com/questions/995719/creating-an-android-trial-application-that-expires-after-a-fixed-time-period">Creating an Android trial application that expires after a fixed time period</a></p>
  
  <p>thanks, Gary</p>