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iOS has no setting for typing a message onto the lock screen. Here are the three ways round that, and which one is actually worth doing.
If you lose your iPhone, the person who picks it up sees a locked screen, a clock, and nothing else. They cannot get to your contacts, cannot see your email, and in most cases cannot even work out whose phone it is. Most lost phones are never returned for exactly this reason – not because people are dishonest, but because there is no way to tell who to give it back to.
Apple gives you no field for “owner information”. There are three practical ways to fix that.
This is the only method that shows your details without the finder tapping anything at all. The trick is that the text is part of the wallpaper image itself, so iOS draws its clock and widgets on top of it.
iOS has a built-in emergency card that a stranger can open without your passcode. It is designed for paramedics, but it works for a lost phone too.
To view it from a locked iPhone: swipe up (or press the side button) to reach the passcode screen, tap Emergency, then Medical ID.
The catch is discoverability. Almost nobody who finds a phone thinks to tap Emergency and go looking. Paramedics are trained to; passers-by are not. Use Medical ID as well as the wallpaper, never instead of it.
If your iPhone is missing right now, open iCloud.com/find or Find My on another Apple device, select the phone and turn on Mark As Lost. This locks the device and lets you display a custom message and phone number on the screen.
Lost Mode is excellent, with two limitations: it only helps once you have already noticed the phone is gone, and it needs the phone to have some connectivity to receive the command. The wallpaper method works from the moment the phone leaves your hand, offline, forever.
| Include | Leave off |
|---|---|
| First name, or first name and surname | Your home address |
| An alternative contact number with country code | Your date of birth |
| An email address | Your own mobile number |
| “Reward offered” if you want | Anything a scammer could use to impersonate you |
Assume anyone who picks up the phone can read every word. That is the point of the exercise, but it means the lock screen is a public place. Keep it to what is needed to get the phone home.
Notifications stack from the bottom of the screen upward, and widgets sit just under the clock. The safe band is the middle of the screen, roughly a third of the way down. Any tool you use should show you where those zones fall.
Yes. On iPhone models with always-on display the wallpaper dims but stays visible, so the text is still readable at a glance.
iOS zooms wallpapers in slightly by default. Pinch to fit during setup and keep the text away from the outer edges. Using an image at your exact screen resolution avoids most of the problem.
A phone number alone is low risk – it is the same information on any business card. Use a second person's number rather than your own, and do not pair it with your address.