Whether your child lost their iPhone or they’re using it when they’re not supposed to, you might want to lock your child’s iPhone remotely at some point. The easiest way is to mark their phone as lost in the Find My app. For ongoing parental controls, use Screen Time to limit apps and content. Either way, you’ll need to add your child’s phone to a Family Sharing account first for remote access.

Before you start:

  • Set up Family Sharing with your Apple ID on an iPhone or Mac.
  • Have your child’s name, birth date, email address, and details ready to create their Apple ID.
  • Ensure both devices are signed into the same Family Sharing group.

How to remotely lock a child’s iPhone

Follow these steps to set up Family Sharing and use either Lost Mode for immediate locking or Screen Time for ongoing limits.

Setting up Family Sharing

  • Open Settings on your iPhone, tap your name at the top, and tapContinue.
  • If you don’t have an iPhone, use a Mac signed into your Apple ID to set it up instead.
  • SelectCreate Child Account if your child is 12 or under, or Invite Others if they’re 13 or older.
  • Follow the on-screen instructions: enter your child’s name, birth date, email address, and create an Apple ID password for them.
  • Create a secret passcode for your child’s phone during setup.

Locking the iPhone with Lost Mode

  • Open the Find My app on your iPhone.
  • TapDevices, then select your child’s phone.
  • TapMark As Lost and activate it.
  • Follow the screen instructions; if no passcode exists yet, you’ll be prompted to create one now. Warning: This locks the phone completely and displays a message with your contact info.

Limiting access with Screen Time

  • Ensure your child is added to your Family Sharing account.
  • On your device, go to Settings > Screen Time > Family > your child.
  • Set a Screen Time passcode to prevent changes. Warning: Keep this passcode secret from your child.
  • Configure limits like Downtime, App Limits, Screen Distance, Communication Limits, and Content & Privacy Restrictions as needed.
Pro tip: For advanced monitoring, try third-party apps like Bark, Qustodio, or Aura, which offer extra features beyond Apple’s built-in tools.

Remotely locking or limiting your child’s iPhone protects their safety by preventing misuse, unauthorized access, or exposure to harmful content when the device is lost or during inappropriate times. It gives parents peace of mind, knowing they can intervene quickly without physical access to the phone.

These tools also teach responsible device use through built-in restrictions, fostering better habits early on. Combined with open discussions, they balance freedom and supervision effectively for growing kids.