Learn How to Create a Passkey on iPhone

What Passkeys Are and Why They Matter on Your iPhone

A passkey is a new way to sign into apps and websites using your face, fingerprint, or a device PIN instead of typing a password. Unlike traditional passwords that you have to remember and type out every time, passkeys work through biometric authentication—meaning your phone recognizes who you are through biology or a code you've already set up. Apple introduced this technology to make logging in faster, safer, and less frustrating for iPhone users.

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The traditional password system has a fundamental problem: people either reuse the same password across many accounts (which creates a security risk if one site gets hacked) or they create unique passwords and forget them. With passkeys, your iPhone handles the complexity. When you create a passkey for a website or app, your phone generates a unique cryptographic key that proves you're the legitimate user without ever transmitting a password over the internet.

Passkeys work through a technology called public-key cryptography. Here's the basic idea: your iPhone creates two pieces of information—a public key and a private key. The public key goes to the service you're logging into (like a bank or social media platform). The private key stays locked inside your iPhone's secure enclave, a specially protected area of your phone's processor. When you try to sign in, your iPhone proves it has the private key by using your face, fingerprint, or PIN. This process is mathematically secure—someone cannot forge your identity just by having the public key.

The practical benefit is immediate: no more password recovery emails, no more wondering if you used an uppercase letter in position three of your password, no more reusing "Password123" across six different accounts. Instead, you unlock your phone the way you already do—with Face ID or Touch ID—and you're logged in.

Practical takeaway: Passkeys replace the entire password system with a security method built into your phone's hardware. This means better protection without the mental load of remembering complex passwords.

Checking Your iPhone's Compatibility and iOS Requirements

Not every iPhone can create passkeys, and not every version of iOS supports them. You need to understand which devices qualify and which software version your phone is running. This is important because attempting to create a passkey on an incompatible device will either fail or show you features that don't actually work properly.

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Passkey support requires iOS 16 or later. Apple released iOS 16 in September 2022, so if your iPhone is running iOS 15 or earlier, you won't see passkey features in Settings. The good news: most iPhones in active use today run iOS 17 or iOS 18, both of which support passkeys fully. To check your iOS version, open Settings, scroll to General, then tap About. Look for the "Software Version" line—if it says 16, 17, or 18, you're ready to move forward.

Any iPhone model from iPhone 13 and newer can create passkeys without restriction. If you own an iPhone 12 or earlier model, you can still create and use passkeys, but there are important technical limitations to understand. On older models, your passkey is stored in iCloud Keychain but relies on internet connectivity to verify your identity across devices. This is less seamless than on newer phones where the secure enclave handles everything locally. In practical terms: it still works, but there may be occasional delays or authentication steps.

Your iCloud account must also be active and set up on your iPhone. Passkeys are synced through iCloud, which means they're backed up across your Apple devices but also protected by your iCloud security settings. If you don't have iCloud turned on or don't remember your Apple ID password, you'll want to set that up first. Go to Settings, tap your name at the top, and confirm iCloud is enabled.

Practical takeaway: Check your iOS version (Settings > General > About) and confirm it says iOS 16 or later. Verify your iCloud account is active. These two steps take less than a minute and determine whether you can create passkeys on your specific iPhone.

Creating Your First Passkey During Website Sign-Up

The easiest time to create a passkey is when you're signing up for a new account on a website or app. Many major services—including Apple, Google, Microsoft, and PayPal—now offer passkey creation as an option during the registration process. This is simpler than converting existing passwords because you're not replacing anything; you're just choosing passkey authentication from the start.

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Here's how the process typically works in practice: You navigate to a website that supports passkeys and tap the sign-up button. Instead of creating a password, you'll see an option that says something like "Create a passkey" or "Sign up with a passkey." After entering your email or username, the site will prompt your iPhone to create a passkey. At this point, your iPhone will ask you to authenticate using Face ID or Touch ID (or your device PIN if you haven't set up biometric authentication). Once you verify your identity, the passkey is created and stored on your phone.

The process takes about 10 seconds from start to finish. Your iPhone generates the cryptographic keys, the website stores its copy of the public key associated with your account, and you're signed in. No password to write down, no recovery questions to answer, nothing to memorize. The next time you visit that website or open its app, you'll see a sign-in prompt that offers your passkey. You tap it, authenticate with Face ID or Touch ID, and you're logged in—often faster than typing a password would have taken.

Not every website supports passkeys yet, but the list is growing. As of 2024, major platforms including Dashlane, GitHub, Google, Amazon Web Services, Adobe, and many banking apps have implemented passkey support. Smaller or older websites may not yet offer this feature. When you're signing up for something new, look for language about "passkeys," "passwordless," or "biometric sign-in." If you don't see it, those sites still require traditional passwords.

One important note: if you're creating an account on a website using Safari on your iPhone, the passkey is stored in your iPhone's iCloud Keychain. If you later want to sign into that same account from a Mac, iPad, or another iPhone, the passkey syncs automatically through iCloud. However, if you're using a non-Apple device or browser, you may not be able to use that passkey directly.

Practical takeaway: When signing up for a new account, look for the passkey option instead of creating a password. This is the path of least friction and gives you the full benefit immediately.

Converting Existing Passwords to Passkeys

If you already have accounts at websites or apps where you've been using passwords, you can convert those existing accounts to use passkeys instead. This process varies slightly depending on the service, but the general flow is the same: go to your account settings, find the security or password section, and look for an option to add a passkey or enable passwordless sign-in.

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Let's walk through a concrete example. Suppose you have a Google account and want to create a passkey for it. First, you'd go to myaccount.google.com on your iPhone (or in Safari, or through the Google app). Then you'd navigate to Security in the left menu. Under "How you sign in to Google," you'll see "Passkeys" listed. Tap it, then tap "Create a passkey." Google will ask you to verify your identity with your current password, then your iPhone will create the passkey just like in a new sign-up. From that point forward, you can sign into Google using Face ID or Touch ID instead of your password.

The reason services ask for your current password during this process is verification—they want to confirm you actually own the account before adding a new sign-in method. This is a security feature. It prevents someone else from taking over your account by adding a passkey when you're not looking. After the passkey is created, most services will give you the option to remove your password entirely or keep it as a backup method. Some services (like Google) let you use either method; you don't have to delete the password.

Different platforms have different layouts, but the path to convert an existing account is usually: Settings or Account Security section > Password or Sign-in Methods > Add Passkey or Create Passkey. If you can't find it, most services have a search feature where you can type "passkey" and be taken directly to