Publishing android application on android Market
<p>I have a requirement for an android application whereby the application is sold as modules.
In summary the application will have 3 modules and users can choose to buy 1, 2 or all of the 3 modules.
For example user A can choose to buy only module 1 where he gets only features A and B. User B buys 2 modules and he gets Features A, B, C,D and user C buys all 3 modules and they get all the features of the whole application.</p>

<p>The 3 modules all pertain to the same application.</p>

<p>How can we implement the licensing for this type of application so that the user can choose to buy 1, 2 or all 3 modules. Any help will be greatly appreciated.</p>
