Why a control layer matters
A purchase can be valid when it is created and invalid later after a refund, cancellation, expiration, or provider change. Centralizing that state prevents every app from inventing a different answer.
How BillingMeld keeps mobile billing consistent
BillingMeld separates provider events from the access decision your product actually needs.
The recommended flow
Send purchase evidence to BillingMeld, receive the normalized status, and consume event updates through the contract used by your backend.
Keep sensitive logic on the server
Provider credentials, validation rules, and entitlement decisions belong in controlled backend infrastructure. The client should receive only the access result it needs.
- A server-side purchase validation endpoint
- A normalized entitlement state
- Refund and revoke event handling
- Explicit expiration and renewal rules
- Idempotent event processing
- Audit-friendly state changes
- Product-side authorization after validation
- Monitoring for delayed or conflicting provider signals
- A fallback policy for unavailable provider data
Start with one product and one entitlement type. Once the state contract is stable, extend the same rules to additional apps and plans.