How to Turn On Face ID for Apps on iPhone (iOS 15 Update)

If you're wondering how to put a password on your apps, Face ID is a great way to go.

* This post is part of iPhone Life's Tip of the Day newsletter. . *

Avoid typing pesky passcodes—use Face ID instead! 
Avoid pesky passcodes; use Face ID to unlock apps.
Use Face ID to secure apps instead of passcodes.

Face ID can be used to unlock apps on the iPhone. For example, when I open my Day One journaling app, Face ID quickly identifies me and lets me in. This saves me from needing to enter the passcode. For easier logins, let's cover how to put Face ID on apps.

Related: How to Set up Face ID, plus Using It to Unlock Apps & Make Purchases

Why You'll Love This Tip

  • Save time by using Face ID instead of entering a passcode. 
  • Avoid having to remember a unique passcode each time you log in to a secure app.

How to Add Face Id to Apps

Whether or not Face ID works with an app depends on the app’s developers and what they’ve programmed the app to be able to do. But you can easily see which of your apps will work with Face ID within Settings. Here's how to enable Face ID for apps:

  1. Open the Settings app.

    Open Settings to add Face ID to apps
  2. Select Face ID & Passcode.

    Toggle on Face ID & Passcode
  3. Enter your iPhone passcode.
  4. Under the Use Face ID For section, select Other Apps.

    select Other Apps
  5. Toggle on the apps you want to unlock with Face ID.

    toggle apps to the on position to sign in using Face ID

Now, when you go to open an enabled app, you'll be able to sign in using your Face ID.

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Author Details

Conner Carey's picture

Author Details

Conner Carey

Conner Carey's writing can be found at She is currently writing a book, creating lots of content, and writing poetry via @conpoet on Instagram. She lives in an RV full-time with her mom, Jan and dog, Jodi as they slow-travel around the country.