Using Trial Services

If your application is available for purchase, you should consider using Trial mode to give users as much of the full-featured application as you can without the constant interruptions to buy the full version. Depending on your application, you can decide when it is appropriate to “nag” the user to purchase the full version. Be creative in your placement of the Buy or Unlock option in your application.

As you can see from Figure 23.9, when you submit your application you can indicate if it can be downloaded for a free trial. This option combined with code in your application allows you to submit a single application package, which can be used for both the trial and full versions. The code in Listing 23.2 shows how simple it is to use Trial mode in your application.