---
title: appID
framework: storekit
role: symbol
role_heading: Instance Property
path: storekit/apptransaction/appid
---

# appID

The unique identifier the App Store uses to identify the app.

## Declaration

```swift
let appID: UInt64?
```

## Discussion

Discussion The App Store assigns this value. This value is the app’s Apple ID in App Store Connect. In the sandbox and xcode environments, this value is nil.

## See Also

### Getting app and version information

- [bundleID](storekit/apptransaction/bundleid.md)
- [appVersion](storekit/apptransaction/appversion.md)
- [originalAppVersion](storekit/apptransaction/originalappversion.md)
- [appVersionID](storekit/apptransaction/appversionid.md)