 Eiji Kitamura [X](https://twitter.com/agektmr) [GitHub](https://github.com/agektmr) [Mastodon](https://infosec.exchange/@agektmr) [Bluesky](https://bsky.app/profile/agektmr.com)
Published: January 16, 2025
Passkeys are a safer and more user-friendly alternative to passwords. They
enable users to sign in to apps and websites by unlocking their device
screen--with a biometric sensor (such as a fingerprint or facial recognition),
PIN, or a pattern. With passkeys, users no longer need to remember or manage
passwords, and worry about phishing. With passkeys on Google Password Manager
(GPM) being available on iOS and iPadOS, Chrome syncs passkeys across [all
operating
systems](https://developers.google.com/identity/passkeys/supported-environments).
## Passkeys on Google Password Manager are now available on iOS 17 or later
Chrome users on iOS 17 or later (and iPadOS 17 or later) can now create passkeys
on Google Password Manager and synchronize them across Android and all other
platforms where Chrome is available.
User verification dialog displayed in Chrome on iOS
Previously, passkeys created on Google Password Manager on Android, Windows,
Linux and ChromeOS were not available on iOS or iPadOS. Similarly, passkeys
created on iOS or iPadOS were saved to Apple Passwords (formerly iCloud
Keychain) and not synced to other platforms. While Apple Passwords syncs
passkeys across Apple devices under the same Apple account, it does not extend
compatibility to other platforms.
## Passkeys now sync on Chrome across all platforms and devices
With this update, Chrome on iOS 17 or later now supports creating and saving
passkeys directly to Google Password Manager, ensuring they synchronize
seamlessly with other platforms linked to the same Google Account.
| Platform | Google Password Manager | Apple Passwords |
|---|---|---|
| **Windows** | ✅^1^ | - |
| **macOS** | ✅ | ✅ |
| **iOS/iPadOS** | ✅^2^ | ✅ |
| **Android** | ✅ | - |
| **Linux** | ✅ | - |
| **ChromeOS** | ✅ | - |
[✅ Can create and synchronize passkeys
^1^ Requires TPM
^2^ Requires iOS/iPadOS 17 or later]
This change means Chrome with the same signed-in profile can synchronize
passkeys on the Google Password Manager across all platforms and devices.
> [!NOTE]
> Chrome on iOS 16 will continue to store passkeys to iCloud Keychain.
## How to use passkeys on iOS
To use passkeys on Google Password Manager on iOS 17 or later, set Chrome
as an autofill provider in Settings. With this setting, users can use passkeys
saved to Google Password Manager on any apps and browsers on the device.
To do so:
1. Open **System Settings** on a device that runs iOS 17 or later
2. Navigate to **General** \> **AutoFill \& Passwords**
3. Under **AUTOFILL FROM**, toggle Chrome to enable autofill
 Toggle Chrome under **AUTOFILL FROM:**
## How it works
When a user sets up passkeys in Google Password Manager (GPM) on Android,
they're automatically protected by the same method they use to unlock their
phone, such as a fingerprint or screen lock. To enable users to access saved
passkeys on iOS, we're using [Google Password Manager
PIN](https://developers.google.com/identity/passkeys/supported-environments#google-password-manager)
(GPM PIN).
Passkeys are end-to-end encrypted and can't be accessed by anyone. Not even
Google. Because of this users will need to remember and use their GPM PIN to
restore access to their passkeys on a new device.
To start using passkeys on a new device, users must enter their GPM PIN or the
unlock method of their Android device. Once synced, passkeys can be used across
supported apps and websites.
When saving their first passkey to GPM on iOS, users will be asked to create a
GPM PIN.
 When a user is saving their first passkey to GPM on iOS, they'll be asked to create a GPM PIN.  When a passkey on GPM is being created or accessed for the first time on Chrome on iOS, users without an Android device are asked to enter a PIN for GPM.
## Learn more about passkeys
With this update, Google Password Manager syncs passkeys across all devices that
use Chrome with the same Google Account. Now is the time to replace passwords
with passkeys. Learn more about passkeys with these resources:
- Watch a short video to learn passkeys: [Understand passkeys in 4
minutes](https://www.youtube.com/watch?v=2xdV-xut7EQ)
- Learn passkeys in Google ecosystem: [Passwordless login with
passkeys](https://developers.google.com/identity/passkeys/)
- Learn passkeys on the web: [Passkeys \| Chrome for
Developers](https://goo.gle/passkeys-web)