---
title: NSFaceIDUsageDescription
framework: bundleresources
role: symbol
role_heading: Property List Key
path: bundleresources/information-property-list/nsfaceidusagedescription
---

# NSFaceIDUsageDescription

A message that tells people why the app is requesting the ability to authenticate with Face ID.

## Discussion

Discussion important: This key is required if your app uses APIs that access Face ID. Also note that App Clips can’t use Face ID. For more information about functionality that’s unavailable to App Clips, see Choosing the right functionality for your App Clip.

## See Also

### Face ID

- [Logging a User into Your App with Face ID or Touch ID](localauthentication/logging-a-user-into-your-app-with-face-id-or-touch-id.md)