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A passkey lets you sign in with a fingerprint, face recognition, device PIN, or security key. You can add one from your account’s Security settings.
1

Sign in to Vocab Monster

Open the app and sign in using an existing sign-in method.
2

Open Account → Security

In the app, open Account, then select Security. You can also go directly to Account Security.
3

Select Add passkey

In the Passkeys section, select Add passkey. Your browser or password manager will ask you to verify and save the passkey.
4

Complete the device prompt

Follow the instructions on screen. Depending on your device, you may use a fingerprint, face recognition, device PIN, or security key. When setup finishes, the new passkey appears in the Passkeys section.
Next time you sign in, follow Sign in with a passkey. You don’t need to enter your email first.
Keep another sign-in method available for recovery. Removing a passkey from Vocab Monster stops it from signing in to your account, but does not remove the saved passkey from your device or password manager.

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Rename or remove a passkey

In Account → Security → Passkeys, select Rename to change its name or Remove to revoke it for your Vocab Monster account. If the passkey option is unavailable, or you see a message that passkeys aren’t enabled, use another sign-in method and contact support. Passkeys require a supported browser and a secure connection. If the device prompt doesn’t appear, try an up-to-date browser over HTTPS.