> ## Documentation Index
> Fetch the complete documentation index at: https://docs.rownd.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Sign in with Passkeys

> Enable passkey authentication to provide a secure and seamless sign-in experience for users with passkey-enabled devices.

Passkeys offer a secure and convenient method for users to sign in to their accounts on your website and mobile apps. By enabling passkeys, users with passkey-enabled devices can save their passkeys to their account. Once a passkey is saved, users can quickly sign in using their passkeys, providing a seamless and efficient experience.

## Enabling passkeys

Enabling passkeys is easy and does not require any additional code. Simply follow the steps below to enable passkeys for your application.

1. Open your app in the [Rownd platform](https://app.rownd.io/applications). Then click on the **Sign-in methods** tab on the left to adjust your flow.

   <img src="https://mintcdn.com/rownd/nCXzWAtyi1fn2yVX/images/sign-in-methods-1.png?fit=max&auto=format&n=nCXzWAtyi1fn2yVX&q=85&s=eb694fedb9372a9300b5a85a491fe21c" alt="Finding authentication methods is easy; just select &#x22;Sign-in methods&#x22; from the nav pane." width="3164" height="1582" data-path="images/sign-in-methods-1.png" />

2. Scroll down to view the authentication methods, and press **Enable** next to **Passkeys**.

   <img src="https://mintcdn.com/rownd/FjlVKOm-SL8QlAMa/images/passkey-config.png?fit=max&auto=format&n=FjlVKOm-SL8QlAMa&q=85&s=246a20ff36d54760a01436a039a57c1d" alt="Configuring passkeys only takes a few seconds." width="3158" height="1770" data-path="images/passkey-config.png" />

   <Info>
     At this time, passkey cannot be the only form of sign-in enabled. Users can add passkeys after signing up with
     another method. After the first sign-in, they can use their passkeys to sign in to their account. This ensures
     account access across different devices.
   </Info>

3. To confirm your changes, press **Save** in the upper right-hand corner of the page.

With passkeys enabled, users with passkey-enabled devices can now enjoy a seamless and secure sign-in experience on your website and mobile apps.

<Tabs>
  <Tab title="iOS">
    1. Configure iOS "Mobile app settings" in the [Rownd Platform](https://app.rownd.io/methods) with a subdomain, bundle ID, and a team ID. Instructions can be found [here](/configuration/mobile/ios).
    2. In Xcode ensure "Associated Domains" for applinks and webcredentials are configured with your Rownd subdomain

    <Info>
      applinks:your\_set\_subdomain.rownd.link

      webcredentials:your\_set\_subdomain.rownd.link

      See image below
    </Info>

    <img src="https://mintcdn.com/rownd/_6-NXzoX4jbiuYND/images/applinks.png?fit=max&auto=format&n=_6-NXzoX4jbiuYND&q=85&s=cfe7b4f08497ffbbcd3ebc0b7c094c80" alt="Apple XCode view." width="1488" height="1196" data-path="images/applinks.png" />
  </Tab>

  <Tab title="Android">
    1. Configure iOS "Mobile app settings" in the [Rownd Platform](https://app.rownd.io/methods) with a subdomain, package name, and a SHA 256 cert fingerprint. Instructions can be found [here](/configuration/mobile/android).
  </Tab>
</Tabs>