---
title: subscriptionPeriod
framework: storekit
role: symbol
role_heading: Instance Property
path: storekit/skproduct/subscriptionperiod
---

# subscriptionPeriod

The period details for products that are subscriptions.

## Declaration

```swift
var subscriptionPeriod: SKProductSubscriptionPeriod? { get }
```

## Discussion

Discussion This read-only property is nil if the product is not a subscription. A subscription period is described in terms of a unit and the number of units that make up a single period.

## See Also

### Getting Subscription Information

- [subscriptionGroupIdentifier](storekit/skproduct/subscriptiongroupidentifier.md)
- [SKProductSubscriptionPeriod](storekit/skproductsubscriptionperiod.md)
- [SKProduct.PeriodUnit](storekit/skproduct/periodunit.md)