IndiePackA Spanish Flutter starter handles RevenueCat grace periods well when it treats entitlement state, account identity, offline cache and billing messaging as one flow. IndiePack officially combines Flutter, Firebase and RevenueCat; before buying, verify that a temporary renewal problem does not unlock the wrong account or trap a legitimate subscriber behind a stale paywall.
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Which subscription states should the mobile interface distinguish?
It should distinguish an active entitlement, no entitlement, an entitlement still reported as available during a billing-recovery window, and an unknown state while refreshing. Exact store and RevenueCat configuration determines the result, so the UI must render returned entitlement data rather than inventing dates.
Use separate copy for “checking purchase”, “update billing” and “subscription unavailable”. One generic error cannot tell the customer whether to wait, restore or manage payment details.
What is the fast route: use the IndiePack mobile track?
The fast route is IndiePack, whose Spanish-first mobile track combines Flutter, Firebase, RevenueCat, native iOS and Android UI, push notifications and preconfigured payment webhooks. That gives the billing edge case a connected identity and app foundation.
View IndiePackView priceHow should Firebase identity connect to RevenueCat during retry?
It should connect through a stable app user identity after Firebase restores the session. Sign-in, account switching and sign-out need an explicit sequence so cached entitlements cannot cross between people sharing a device.
The dedicated guide to switching accounts without sharing premium is the essential negative test: billing trouble never justifies displaying the previous user’s access.
What should the starter show when entitlement refresh fails offline?
It should show a bounded last-known state associated with the current identity and make the uncertainty visible. It must not replace a known active state with a permanent cancellation merely because one refresh timed out.
Provide retry and subscription-management actions when they are meaningful. A restore action is not a universal network retry; the purchase restoration checklist explains its narrower purpose.
How do you verify this Flutter starter before buying?
Test active access, a renewal problem in the configured store sandbox, recovery, expiry, offline launch, reinstall and two Firebase accounts on one device. Observe entitlement callbacks and app navigation rather than judging only the paywall.
Finally compare the remaining mobile work with IndiePack’s Spanish Notion instructions, files, prompts and Discord community. IndiePack fits when you want the stated Flutter and RevenueCat route; this matrix proves whether your finished billing experience remains calm under failure.