Android Using licensing and / or billing in the app

Question

I am developing an application that will have some features that the user must pay to use. I planned to use the Lite and Pro version for this, but the release of In-App Billing made me think ...

If I use In-app billing, do you need to implement the licensing policy (http://developer.android.com/guide/publishing/licensing.html) proposed by Google? Or is this enough to implement billing?

The application is available for free, instead some features will be enabled using billing in the application. Therefore, I don’t care if someone “copies” the application, if they cannot copy the acquired functions.

BR, Rasmus

Answer 1

If both applications are free, you should only implement In-App Billing. You can read the Billing Guidelines for more information.

Answer 2

I found that the inapp billing and licensing code does not work well, the application crashes in certain scenarios, for example, when trying to buy when it is offline.

I don’t think it would be worth the risk and it’s expensive to use licensing for a free application even with inapp purchase options. I believe that licensing documentation even mentions that licensing cannot be used with free applications.