Approve iPhone From Another Device: 2 Easy Ways

To approve your iPhone from another device, you need to enter the six-digit verification code that appears on your iPhone into the other device, or tap “Approve” on the other device if you’re using the same Apple ID. This is part of Apple’s two-factor authentication, which is designed to verify that it’s really you signing in. Here’s how to handle it on an iPhone, iPad, or Mac, plus what to do if the code never arrives.

Why Apple Asks You to Approve a Sign-In

Apple’s two-factor authentication (2FA) is a security feature that protects your Apple ID. When you sign in to a new device or a web browser, Apple requires proof that you have access to a trusted device—usually your iPhone. Instead of just a password, you need a verification code that is generated on your trusted device. This prevents someone who knows your password from accessing your account without also having physical access to your phone.

The approval process works differently depending on where you are signing in:

On a new iPhone or iPad: After entering your password, a prompt will appear on your current iPhone asking if you trust the new device. You tap “Allow,” then enter the six-digit code displayed on the new device.
On a Mac or Windows PC: After entering your password, a code is sent to your trusted iPhone. You type that code into the computer.
On the web (iCloud.com or Apple ID account page): You enter your password, then approve the sign-in from your iPhone, which shows a map and a code.

The code is time-based and changes every 30 seconds, so you need to enter it quickly. If you wait too long, a new code will appear.

How to Approve a Sign-In on an iPhone or iPad

When you set up a new iPhone or iPad, or sign in to an existing one, Apple will show a prompt on your current trusted device. Here’s the exact process:

On your current iPhone, a notification will appear: “Your Apple ID is being used to sign in to a new device.” Tap Allow.
Your iPhone will display a six-digit code. It also shows a map with the approximate location of the new device.
Enter that code on the new device within 30 seconds.
If you don’t see the prompt, go to Settings > your name > Password & Security and look for a “Get Verification Code” option. This will generate a code you can use.

If you’re signing in to a device you own and plan to use regularly, you can tap “Trust” on the browser or device. That way, you won’t be asked to approve again for 30 days. On a shared or public computer, always tap “Don’t Trust” to keep your account secure.

How to Approve a Sign-In on a Mac or PC

Signing in to your Apple ID on a Mac or a Windows PC follows the same two-factor flow, but the approval happens on your iPhone:

Enter your Apple ID email and password on the Mac or PC.
On your iPhone, you’ll see a notification asking if you approve the sign-in. Tap Allow.
Your iPhone will show a six-digit code. Type it into the computer.
If the notification doesn’t appear, open Settings > your name > Password & Security on your iPhone and tap Get Verification Code. Use that code.

On a Mac, you can also approve a sign-in directly on the Mac if it’s already signed in with the same Apple ID. A pop-up will appear on the Mac itself, and you can click “Allow” and enter the code shown there. This works because the Mac is already a trusted device.

What to Do If You Don’t Get the Approval Prompt

Sometimes the approval prompt never appears on your iPhone. This can happen for several reasons:

No internet connection: Your iPhone needs an internet connection (Wi-Fi or cellular) to receive the prompt. Check that you have a connection.
iMessage is off: Some Apple ID verification codes are delivered via iMessage. Go to Settings > Messages and make sure iMessage is enabled.
You’re signing in to a device that’s already trusted: If you’ve previously trusted the device, you won’t be asked to approve again. The sign-in will just proceed.
Date and time are wrong: If your iPhone’s date and time are incorrect, the code generation can fail. Go to Settings > General > Date & Time and turn on “Set Automatically.”

If none of these work, you can use a recovery method. Go to Settings > your name > Password & Security > Account Recovery to start the process. This may take a few days, but it’s the official way to regain access if you’ve lost all trusted devices.

Approving from an Apple Watch or Another iPhone

You don’t always need your iPhone to approve a sign-in. If you have an Apple Watch, you can approve from there. When you sign in to a new device, the watch will show a notification with the code. Tap “Allow” on the watch, and the code will appear on the watch screen.

If you have another iPhone that is already signed in with the same Apple ID, you can use that one instead. The prompt will appear on all trusted devices that are signed in with the same Apple ID. If you have multiple iPhones, they will all show the approval prompt. You can approve from any of them—the code is the same on all devices.

Common Problems and Misconceptions

One common issue is that people think the approval code is sent via SMS text message. That’s only true if you don’t have any trusted devices available. When you have an iPhone, the code is generated on the device itself, not sent as a text. So if you’re not getting a text, that’s normal—look for the notification on your iPhone instead.

Another misconception is that you need to enter the code from the new device onto your iPhone. That’s backwards. The code appears on your trusted iPhone, and you type it into the new device. If you’re setting up a new iPhone, the new iPhone will show a code, and you type that into your old iPhone (or just tap “Allow” and the code is entered automatically).

If you’re stuck in a loop where your iPhone keeps asking you to approve but you never see the prompt, try restarting your iPhone. Also, make sure you’re not signing in to a device that’s already trusted—if you are, you won’t see the prompt at all.

Security and Privacy Considerations

Two-factor authentication is a strong security measure, but it’s only effective if you approve requests you’re expecting. If you ever see an approval prompt that you didn’t trigger, tap “Don’t Allow.” That could be a sign that someone else is trying to access your account. If you accidentally approve, change your password immediately.

Never share your verification code with anyone. Apple will never call you and ask for the code. If someone claiming to be from Apple asks for your code, that’s a scam. Also, be cautious about approving sign-ins from devices you don’t recognize. The map shown in the prompt is approximate, so it might not be exactly where the device is, but if it’s in a different country and you’re not traveling, don’t approve.

Frequently Asked Questions

Can I approve my iPhone from my computer without a code?
No, you need the six-digit code that appears on your iPhone. The computer will not approve the sign-in without it. If you can’t see the code on your iPhone, you can generate one manually in Settings > your name > Password & Security > Get Verification Code.

Why does my iPhone keep asking me to approve sign-ins?
This usually happens when you’re signing in to a new device or browser that you haven’t marked as trusted. If you’re signing in to the same device repeatedly, make sure you tap “Trust” when the browser asks. If you’re using a private browsing window, it will ask every time.

What if I lost my iPhone and need to sign in on a new device?
If you have another trusted device (like an iPad or Mac), you can use that to approve. If you have no trusted devices, you’ll need to go through account recovery, which can take a few days. You can also try using your phone number for SMS verification if you have a trusted phone number set up.

Can I approve a sign-in from my Apple Watch?
Yes, if your Apple Watch is paired with your iPhone and has a passcode enabled, you can approve sign-ins from the watch. The code will appear on the watch screen, and you can enter it on the new device.

Is two-factor authentication mandatory for my Apple ID?
For most new Apple IDs, yes. Apple requires two-factor authentication for all accounts created after a certain date, and it’s strongly recommended for older accounts. You can turn it off in some cases, but Apple warns that doing so weakens your account security.

General steps for current mainstream versions; menus can differ by device and version. See the disclaimer or report an error.

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