Docs

Proofline docs

Install the SDK, connect your purchase data and see your first receipt. The SDKs and APIs are in beta: names are stable, but expect additions before 1.0.

Quickstart

iOS (SwiftUI / UIKit)Install the Swift package, identify users and pass appAccountToken.
React Native and ExpoInstall the TypeScript SDK and wire the React Native adapter.

Concepts

Signals and tiersThe V/D/U ladder and how a decision is made.
ReceiptsWhat a receipt contains and why it replays exactly.
Windows and holdsClick windows, renewal windows, holds and locking.

Guides

Set up Apple offer codesOne custom code per creator, and the redemption link.
Android Install ReferrerCarry the click ID through the Play Store install.
Stripe web checkoutCarry the creator through Stripe Checkout with metadata.
Adapty (beta)Send Adapty webhook events and the Proofline custom attribute.
Apphud (beta)Send Apphud server-to-server webhooks with a secret token.
Superwall (beta)Send Superwall subscription webhooks, verified by signature.
App Review and privacy labelWhat the SDK collects and how to answer Apple’s questions.

Reference

REST APIAuthentication, idempotency, resources and errors.
WebhooksEvents, payloads and verifying Proofline-Signature.
Testing and sandboxSandbox purchases, test receipts and the Integration Doctor.