On iPhone, passkeys work through **iCloud Keychain**, Apple's native password manager. If you already use iCloud Keychain, your Picnic passkey is registered seamlessly, using **Face ID** or **Touch ID**.

## Requirements

-   iPhone with **iOS 16 or later**.
-   **iCloud Keychain enabled** — instructions below.
-   **Face ID or Touch ID** set up on the device.
-   Signed in to your iCloud account (Settings → \[your name\] at the top).

## How to verify iCloud Keychain is enabled

1.  Open the **Settings** app on your iPhone.
2.  Tap your name at the top.
3.  Tap **iCloud**.
4.  Scroll down to **Passwords and Keychain** (or **Keychain**).
5.  Make sure it's **On**. If not, enable it.

## Step by step to register a Picnic passkey

1.  Open the Picnic app or go to **usepicnic.com** on Safari.
2.  Follow the account creation / recovery flow until you reach the "register passkey" step.
3.  The iPhone will show a system prompt asking whether to save a passkey for Picnic.
4.  Tap **Continue**.
5.  Authenticate with **Face ID** or **Touch ID**.
6.  Done! Your passkey is stored in iCloud Keychain and automatically synced across your Apple devices (iPhone, iPad, Mac).

## How to use the passkey afterwards

Whenever you need to sign in to your account or authorize a transaction:

1.  Picnic will request your passkey.
2.  The iPhone will show the authentication screen.
3.  Just use **Face ID** or **Touch ID**.

## Syncing between iPhone, iPad, and Mac

One of the big advantages of iCloud Keychain is that the passkey becomes **automatically available across all your Apple devices** signed in to the same iCloud account. For example, if you registered the passkey on iPhone, it's already available in Safari on your Mac.

## How to use it on a non-Apple computer (Windows, for instance)

If you want to sign in to Picnic on a Windows or Linux PC using the iPhone passkey, use the QR code flow:

1.  Go to usepicnic.com in the PC browser.
2.  Enter your email and proceed. A QR code will appear.
3.  Open the **iPhone camera** and point it at the QR code.
4.  Tap the notification that appears.
5.  Authenticate with Face ID or Touch ID.

See details at: [How to sign in to my Picnic account](https://help.usepicnic.com/hc/picnic/articles/how-to-access-your-picnic-account).

## Common issues

### The passkey option doesn't appear when creating the account

-   Check that iCloud Keychain is enabled (steps above).
-   Check that iOS is up to date (16 or later).
-   Check that Face ID / Touch ID is set up on the device.

### I accidentally deleted the passkey from iCloud Keychain

In that case you need to recover your account. See: [How to recover or replace your passkey](https://help.usepicnic.com/hc/picnic/articles/how-to-recover-or-replace-your-access-key-on-picnic).

## See also

-   [Passkeys on Android: how to set up](https://help.usepicnic.com/hc/picnic/articles/passkeys-on-android-how-to-set-up)
-   [How to share your account passkey](https://help.usepicnic.com/hc/picnic/articles/how-to-share-your-account-passkey)
-   [Security and self-custody on Picnic](https://help.usepicnic.com/hc/picnic/articles/security-and-self-custody-on-picnic-how-your-access-keys-protect-your-account)