---
title: Subscriptions and offers
framework: storekit
role: collectionGroup
role_heading: API Collection
path: storekit/subscriptions-and-offers
---

# Subscriptions and offers

Offer customers additional time-based content and services through purchases they make within your app.

## Topics

### Essentials

- [Handling Subscriptions Billing](storekit/handling-subscriptions-billing.md)
- [Enabling App Store Server Notifications](storekit/enabling-app-store-server-notifications.md)
- [Offering a Subscription Across Multiple Apps](storekit/offering-a-subscription-across-multiple-apps.md)
- [Reducing Involuntary Subscriber Churn](storekit/reducing-involuntary-subscriber-churn.md)

### Introductory offers

- [Implementing introductory offers in your app](storekit/implementing-introductory-offers-in-your-app.md)
- [Testing introductory offers](storekit/testing-introductory-offers.md)
- [SKProductDiscount](storekit/skproductdiscount.md)

### Promotional offers

- [Setting up promotional offers](storekit/setting-up-promotional-offers.md)
- [Implementing promotional offers in your app](storekit/implementing-promotional-offers-in-your-app.md)
- [Generating a signature for promotional offers](storekit/generating-a-signature-for-promotional-offers.md)
- [Generating a Promotional Offer Signature on the Server](storekit/generating-a-promotional-offer-signature-on-the-server.md)
- [SKPaymentDiscount](storekit/skpaymentdiscount.md)

### Offer codes

- [Implementing offer codes in your app](storekit/implementing-offer-codes-in-your-app.md)

### Subscription service entitlement

- [Determining service entitlement on the server](storekit/determining-service-entitlement-on-the-server.md)