Imported from revenuecat/ai-toolkit (revenuecat-play-billing/skills/rc-alternative-billing/SKILL.md). Install upstream with npx skills add revenuecat/ai-toolkit --skill rc-alternative-billing. Copyright stays with the author (Apache-2.0; see LICENSE).

Alternative Billing Programs

Google runs several programs that let you collect payment outside standard Play Store billing. This skill tells you which pieces the RevenueCat Android SDK covers today and which ones you implement yourself against the Play Billing Library.

Per the handbook chapter, RevenueCat has limited support for these programs as of SDK 9.x. Treat that as the status of record; check the RevenueCat changelog for any newer SDK releases before you start work.

Phase 1: Discovery

Answer these before writing any code.

If you actually want to sell subscriptions via a RevenueCat-hosted web checkout, that is not one of Google's alternative billing programs. Use Offering.webCheckoutURL or Package.webCheckoutURL:

val pkg = offerings.current?.monthly
pkg?.webCheckoutURL?.let { url ->
    startActivity(Intent(Intent.ACTION_VIEW, Uri.parse(url.toString())))
}

After the user completes that purchase on the web, they redeem it in-app via deep link handling.

Phase 2: Plan

Decide which of the two paths fits.

Path A: Wait for SDK support. If your launch timeline is flexible, watch the RevenueCat changelog and docs for first-class support of the specific program you need. This avoids running raw Play Billing Library code alongside RevenueCat.

Path B: Hand roll the integration. If you must ship now, implement the Play Billing Library APIs for the target program directly. The RevenueCat SDK owns the BillingClient instance, so running raw BillingClient calls alongside it needs care.

For Path B, set completion ownership so RevenueCat does not interfere with acknowledgement of purchases you are managing:

Purchases.configure(
    PurchasesConfiguration.Builder(context, apiKey)
        .purchasesAreCompletedBy(PurchasesAreCompletedBy.MY_APP)
        .build()
)

Planning checklist:

• Confirmed the Play program and regional eligibility in Play Console.
• Read the current RevenueCat docs and changelog for the SDK version you ship.
• Chose Path A or Path B with a clear reason.
• If Path B, identified which flows RevenueCat still drives and which you drive.

Phase 3: Execute

What RevenueCat's SDK currently supports in this space, per the chapter:

When you ship Path B, use PurchasesAreCompletedBy.MY_APP so acknowledgement stays in your hands for the purchases you manage, and leave the standard Play Store purchases to the RevenueCat SDK.

Verification steps:

• Standard Play Store purchases still flow through RevenueCat and appear in the dashboard.
• Purchases made through the alternative billing path reach your backend and are reconciled with RevenueCat subscriber state.
• Acknowledgement happens exactly once per purchase, with no double-handling between your code and the SDK.

References

• Full chapter

• RevenueCat Docs: https://www.revenuecat.com/docs/

• RevenueCat Codelabs: https://revenuecat.github.io/