Surprisingly, the difference between Google Wallet APIs and billing and billing on Google Play. What are the benefits of using the GooglePlay payment service for in-app purchases through the Google Wallet Billing API? I see that the Wallet APIs also support Android, and then why use the Goole Play IAP app? I am going to introduce a cross-platform solution for purchasing digital goods in the application. My question is, what Wallet APIs do not offer through the Google Play IAP service?
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