--- title: "Apple" slug: "apple" updated: 2025-05-14T16:09:06Z published: 2025-05-14T16:09:06Z canonical: "help.frisbii.com/apple" --- > ## Documentation Index > Fetch the complete documentation index at: https://help.frisbii.com/llms.txt > Use this file to discover all available pages before exploring further. # Apple *This feature must be activated for your account. If you are interested, please contact* [support@frisbii.com](mailto:support@frisbii.com). ## Apple In-App-Purchase Frisbii Transform offers a direct integration to Apple In-App Purchase. This makes it possible to carry subscriptions that have been concluded via your Apple app with you in Frisbii Transform. Incoming contract changes, billing requests and receipts are processed in Frisbii Transform. For more information, see our developer documentation [here](https://docs.frisbii-transform.com/docs/in-app-purchase). ## Configuration in Apple Configure the application in Apple and define the "URL for App Store Server Notifications" under "General/App Information". The following URL is to be stored: - Sandbox: **https://sandbox.billwerk.com/ExternalSubscriptionsNotifications/AppleIap/{LegalEntityId}** - Production sytem: **https://app.billwerk.com/ExternalSubscriptionsNotifications/AppleIap/{LegalEntityId}**. - LegalEntityId is to be replaced with the Public API Key, which you can find in Frisbii Transform under Settings/Self-Service Access. ## Useful Links - [In-App Purchase programming guide](https://developer.apple.com/library/content/documentation/NetworkingInternet/Conceptual/StoreKitGuide/Introduction.html#//apple_ref/doc/uid/TP40008267-CH1-SW1) - [In-App Purchase Best Practices](https://developer.apple.com/library/content/technotes/tn2387/_index.html#//apple_ref/doc/uid/DTS40014795) - [Video introduction: Using Store-Kit for In-App Purchases](https://developer.apple.com/videos/play/wwdc2013/305/) - [Working with subscriptions](https://developer.apple.com/library/content/documentation/NetworkingInternet/Conceptual/StoreKitGuide/Chapters/Subscriptions.html#//apple_ref/doc/uid/TP40008267-CH7-SW6) - [Receipt validation](https://developer.apple.com/library/content/releasenotes/General/ValidateAppStoreReceipt/Chapters/ValidateRemotely.html#//apple_ref/doc/uid/TP40010573-CH104-SW1) - Receipt validation service: - sandbox (testing): [https://sandbox.itunes.apple.com/verifyReceipt](https://sandbox.itunes.apple.com/verifyReceipt) - In production (live): [https://buy.itunes.apple.com/verifyReceipt](https://buy.itunes.apple.com/verifyReceipt) - [Adding an In-App Purchase to your app](https://developer.apple.com/library/content/technotes/tn2259/_index.html) ### Tutorials and Examples - [https://www.raywenderlich.com/122144/in-app-purchase-tutorial](https://www.raywenderlich.com/122144/in-app-purchase-tutorial) - [https://github.com/gabrielgarza/monza](https://github.com/gabrielgarza/monza)