In-App Billing Overview
In-app billing is an Google Play feature that lets you sell digital content in your applications. By using the in-app billing feature you can add revenue-generating features to your applications, enhancing the revenue potential of paid applications and turning free applications into new revenue sources.
Check out our in-app billing overview article for information, from technical perspective, on how in-app billing works, how to add it to your applications, and how to test your implementation of in-app billing.
Please also see the following: