In windows phone "App.xaml.cs" file contains the following method to identify whether the app is trial version in Windows Phone app.
private void Application_Launching(object sender, LaunchingEventArgs e)
{
var license = new Microsoft.Phone.Marketplace.LicenseInformation();
IsTrial = license.IsTrial(); }
Here IsTrail is the property which returns true or false. Is there any method is available for iOS to detect the lite or Paid version?