How to Find My iPhone With Another Phone

To find my iPhone with another phone, open a browser on that phone, go to icloud.com/find, sign in with your own Apple Account, and pick the iPhone from the list. It works from a friend's iPhone, and Apple says some Android phones can use iCloud.com too. Apple's lost iPhone page says you don't need a verification code to sign in there, which matters because the lost iPhone is usually the device the code would have gone to.

If the other phone is an iPhone on your own Apple Account, or a family member's iPhone in your Family Sharing group, the Find My app is faster than the browser. Which route you take depends on whose phone is in your hand, so start there. And if Find My was never turned on before the phone went missing, Apple says it won't appear on any of these routes, and the stolen iPhone guide is the one to read instead.

Route by Whose Phone You're Holding

The four cases below cover every borrowed phone I can think of. Apple documents each one across its lost-iPhone page, the iCloud Find Devices guide, and the iPhone User Guide.

The friend's iPhone row is the one people get wrong. Apple's iCloud guide is explicit that you can't add a friend's device to their Find Devices list. The friend's Find My app shows the friend's devices and the friend's People. Your iPhone is reachable from their phone only through the browser, signed in as you.

From a Friend's iPhone or Any Browser

This is the route for most of the situations the search is really about, and it's the one Apple's pages describe for a lost trusted device.

1. Open Safari, Chrome, or whatever browser the phone has, and type icloud.com/find. Don't tap a link in a text message claiming your phone was found.
2. Sign in with your Apple Account email and password.
3. If the page asks for a code from a trusted device, look for the Find Devices button at the bottom of the window and select it. Apple's sign-in guide says that continues without the code.
4. Pick the iPhone from the device list.

If the iPhone can be located, it appears on the map. If it can't, the guide says "Offline" appears below the name, the last known location stays visible for up to 24 hours, and you can select Notify me when found to get an email when it comes back online.

That code-skipping button is the detail I'd want everyone to know before they need it, because the instinct when the code prompt appears is to give up. Apple built the exception for exactly this case. Still, Apple's advice is to set up more than one way to verify your identity, so that a lost phone doesn't leave the account itself unreachable for anything beyond Find Devices.

From a Family Member's iPhone

If you're in a Family Sharing group and you've turned on location sharing for that person, your devices appear in their Find My app. Apple's family guide puts the setting under Settings > Family > Location Sharing, and the iCloud guide says each family member has to set up sharing themselves before their devices show up for others.

On their iPhone, open Find My, tap Devices, and scroll. Their devices are at the top, yours below. Tap your iPhone and you can locate it, play the sound, and turn on Lost Mode. The browser route works from their phone too, and the iCloud guide says family devices appear below yours in the All Devices list there as well.

One thing the family route can't do is skip the sharing setup after the fact. If location sharing wasn't on for you before the phone went missing, sign in at icloud.com/find on their phone instead.

From Your Own Second Apple Device

Apple's Find My page gives the short version. Open the Find My app on the other device, choose Devices, and select the lost iPhone. From there, Directions opens Maps, and Play Sound is for when you're close. Apple mentions Find Nearby on the same page, but it applies to an AirTag or AirPods Pro 2 or later and needs Ultra Wideband, so don't expect it to steer you to an iPhone.

The app has one advantage over the browser worth knowing. The iCloud guide says that with the Find My network turned on, the app on a device signed in to your Apple Account can show the iPhone's location even when the iPhone is offline, and stores the last known location for up to 7 days. The browser shows it for up to 24 hours. Same phone, same account, different window. If the browser says Offline, it's worth checking the app on any Apple device you own before deciding the trail has gone cold.

Play the Sound Before You Walk Anywhere

Play Sound is the step I'd do before reading the map too closely, because a dot on a map inside a house doesn't say which room.

Apple's locate guide describes what to expect. If the iPhone is online, the sound starts after a short delay, gets gradually louder, and plays for about two minutes, with a Find My alert on the screen. A confirmation email goes to your Apple Account address. If the iPhone is offline, you see Sound Pending and it plays the next time the phone connects to Wi-Fi or cellular.

When you find it, the guide says to press the power button or a volume button, flip the Ring/Silent switch, or enter the passcode to stop the sound. Two minutes of a chime that keeps getting louder in a quiet office is long enough to want that.

Lock It With Lost Mode

Lost Mode is available from every route in the table, and I'd turn it on as soon as the phone isn't somewhere you can walk to in the next few minutes. Apple's lost-iPhone page gives the app steps.

1. In Find My, go to the Devices tab.
2. Select the missing iPhone.
3. Tap the More button.
4. Scroll to Lost iPhone and turn on Lost Mode.
5. Follow the prompts, then tap Activate.

The iPhone User Guide's Lost Mode page lists what changes. Your message and a contact number appear on the Lock Screen. The phone stops showing alerts or making noise for notifications and alarms, but it can still receive phone and FaceTime calls, which is useful because it means the finder can pick up when you ring it. Payment cards and other services are suspended. If the phone had no passcode, you're asked to create one now. If the phone is offline, the status reads Pending until it reconnects.

Put a number you can answer from the borrowed phone in that message. Not your home address, and not the passcode.

Turning Lost Mode off later is either the app (Turn Off Mark As Lost) or simply entering the passcode on the iPhone once it's back. Apple notes that with Stolen Device Protection on, Face ID or Touch ID is required to turn Lost Mode off.

What Offline and No Location Found Mean

Apple's offline page gives three reasons a device shows as offline. It's powered off or the battery ran out, it isn't connected to a known Wi-Fi or data network, or Send Last Location was on and more than 24 hours have passed since it last connected. The battery guide exists because the first reason is the ordinary one.

"No location found" is different from Offline. The iPhone User Guide says to turn on Notify When Found under Notifications when you see it, and Apple's Find My page says that once more than seven days have passed since the phone last sent its location through the Find My network, Find My can't display one at all.

Neither state means your actions are wasted. Apple's offline page says you can still play a sound, send a message, issue a lock request, or start an erase, and the request runs when the device reconnects. So the honest sequence for an offline phone is Lost Mode now, Notify me when found, and wait, rather than refreshing the map.

The Reddit thread ranking for this search is a good example of the other confusion. The poster had a sister's shared location in Find My but saw "no location found" and couldn't play a sound. Seeing a person under People is location sharing between people. Playing a sound needs the device under Devices, which means either the sister signs in at icloud.com/find as herself, or the two are in a Family Sharing group with location sharing on. A shared location for a person doesn't carry the device controls with it.

Questions Google Attaches to This Search

Can I locate another person's iPhone? Only in the ways above, with their account or their Family Sharing consent. Apple's iCloud guide says friends who lose a device sign in at icloud.com/find themselves. You can hand them your phone to do it; you can't do it for them without their password.

How do I see someone's location on my iPhone? That's the People tab, and it only shows people who chose to share with you. It's a different feature from device finding, and it won't play a sound or lock anything.

Can a lost iPhone be tracked from its phone number? Not through Find My. Apple's pages tie every route to the Apple Account the phone was set up with, and a phone without Find My turned on before the loss doesn't appear anywhere. Whether a carrier can estimate a location from network activity is a question for the carrier and, if the phone was stolen, the police, who Apple says may ask for the serial number.

What if the phone is stolen, not lost? Lost Mode, then a police report, and don't go to the dot. Apple's page adds a warning worth repeating. Don't remove the iPhone from Find My, even after a remote erase, because removing it removes Activation Lock and makes the phone easier to resell. The factory reset guide explains what Activation Lock does from the other side.

Before You Hand the Borrowed Phone Back

A borrowed phone now has your Apple Account session in its browser. Sign out of icloud.com before you return it, and if the browser offered to save the password, say no. On a family member's phone you were using their own Find My app, so there's nothing to sign out of.

If you changed your Apple Account password during the panic and you have Stolen Device Protection on, the iCloud guide notes that device locations may not be visible for a period of time afterwards. Change the password if you think it's compromised, but know that the map may go quiet for a while as a result.

The Find My setup guide covers the part that happens before any of this, which is turning Find My on and checking the phone appears in the list while it's still in your pocket. Every route on this page assumes that step was done. None of them can add it afterwards.