Developer's DescriptionBy Sergey SolovyevCheckout is a library for Android In-App Billing (Version 3).Checkout is a library for Android In-App Billing (Version 3). The main goal is to reduce work which should be done by developers who want to integrate in-app purchases in their products. The project is inspired by Volley library and is designed to be easy to use, fast and flexible.Source code is available on github: https://github.com/serso/android-checkout