When you’re developing a mobile application for Android and distributing it on Google Play, there are two primary ways you can accept payments: Google Play’s billing system and Google Pay.
Google Play’s billing system makes it easy for users to consistently, securely, and seamlessly purchase your goods and services for your app. Developers who distribute their app through Google Play are required to use Google Play’s billing system to sell in-app content. Items that require developers to use Google Play’s billing system include the following:
### Sell physical goods or services with Google Pay Use Google Pay to sell physical goods or services that are used or delivered outside of your app. Google Pay provides your customers a faster, safer way to pay online, both in apps and wherever contactless payments are accepted. ### Other app monetization options