Using external payments processor on Android for SaaS instead of Google Play In-app Billing

Question

I’ve built a SaaS website with subscriptions, enabled by an external payments processor (which could be Stripe, Braintree, Paddle, etc.).

Now this website for my SaaS ha

Answer 1

For sure, all (real-money) poker application are real-world example. (pokerstars for example)

I had never seen a poker application which use Google Play Service for billing. (maybe for legal reason)

They are using an hosted web-page (in a webview or in an encapsulated builtin web-browser) to treat payment processing on their side, which allow end user to select a payment methods in a big list.

Note that in that case you have to treat by yourself the user balance (which implied to treat all the security on payment processing on your side)