Apple Screen Time on iPhone, the UK setup walkthrough

Short answer. Apple Screen Time, set up properly through Family Sharing, is the most developed parental-control system on the market. We’ve read Apple’s published Help pages so you don’t have to. Here’s the five-step setup. This matters if a smartphone is in the family. If your child is on a basic phone, see best simple phones; there’s nothing to configure on a Nokia 3210.

Before you start

You’ll need:

• Your own iPhone or iPad, signed in to your Apple ID, with Family Sharing already on (or ready to set up).
• Your child’s iPhone, in your hand, signed-in to wi-fi.
• An Apple ID for your child. If they’re under 13, you create one through Family Sharing, which sets the child-account protections automatically. If they’re 13+, they can have their own existing Apple ID and join your family.
• A Screen Time passcode you don’t tell anyone, including your child. Write it down somewhere they won’t find. This is the single most important step. Without it, every other setting is optional for them.

Half an hour. Do it together with your child, not behind their back: the device is theirs, the rules are yours, and the conversation is the bit that makes it stick.

Step 1, set up Family Sharing

On your iPhone: Settings, tap your name at the top, Family. Follow the prompts to set up a Family Group. Add a second parent if you share parenting, because Family Sharing supports two organisers on one family.

Family Sharing is the parent layer. It handles App Store approval, lets you remote-manage Screen Time on a child’s device, and shares Apple TV+ and Apple Music across the family. Screen Time is the device-side controls that Family Sharing makes possible to manage at a distance.

Step 2, create the child Apple ID (under 13 or 13+)

Under 13. Inside Family in Settings, tap “Add Family Member”, then “Create an Account for a Child”. Apple walks you through the form. The child account gets parental supervision turned on by default; the protections remain until they turn 13.

13 and older. Your child can sign in to their existing Apple ID on their iPhone, then accept the invitation to join your family. Or you can create a new Apple ID for them, which is the cleaner route.

Apple’s support pages cover both flows in detail.

Step 3, configure Screen Time on the child’s device

On your child’s iPhone: Settings, Screen Time, Turn On Screen Time. Choose “This is My Child’s iPhone”. Apple now walks through the initial limits prompts. Set them roughly, you’ll fine-tune in a moment.

When prompted for a Screen Time Passcode, set it. Choose a four-digit code that’s not the device passcode, not your child’s birthday and not the family iCloud password. Write it down somewhere safe. Your child will, at some point, try to guess it. They will fail.

The passcode is what stops your child from disabling Screen Time. Without it, Screen Time is a polite suggestion.

Step 4, the limits worth setting in 2026

Four settings carry most of the weight.

Communication Safety. Settings, Screen Time, Communication Safety. Turn it on. This is Apple’s on-device detection that warns the child before they send or receive sensitive imagery, with the analysis done on the device, not on Apple’s servers. It’s free, it’s local, and it’s one of the things Screen Time genuinely does well.

Communication Limits. Settings, Screen Time, Communication Limits. Set “During Screen Time” to Contacts Only. Set “During Downtime” to Specific Contacts (yours and the other parent’s). This is the single best brake on a teen’s evening messaging.

App Limits. Set per-app caps for the apps you care most about. The published evidence on UK adolescent harm is most consistent on Instagram, TikTok and Snapchat (the wider read is at /social-media-age-limits-uk). Many families set those at zero, then re-enable on a case-by-case.

Downtime. A daily window when the phone is locked to phone calls and a whitelist. Set it to overlap with bedtime (most UK parents land on 8pm or 9pm to 7am). The single biggest sleep intervention you have.

Step 5, the Screen Time passcode (and why you must set it)

This is worth repeating because it’s the thing UK parents most often miss.

If you don’t set a Screen Time passcode, your child can go into Settings, tap Screen Time, and turn the whole system off. Every limit, every restriction, gone in three taps.

If you do set one, they cannot disable Screen Time, change the App Limits, or remove Downtime without entering it. The system holds.

Apple’s published support pages explain how to recover a forgotten Screen Time passcode (it ties back to your Apple ID), so write it down, but don’t panic if you lose it. The recovery flow exists.

The honest limits of Screen Time

Screen Time is the best parental-control system on the market, but it doesn’t do everything.

• A factory reset removes it. A child who knows the device passcode can wipe the iPhone and start fresh without supervision. The mitigation is to also set Find My, which makes a wiped device easier to trace back.
• It doesn’t read inside encrypted apps. Communication Limits work on iMessage and FaceTime. Screen Time can block or limit WhatsApp, but it can’t see inside it.
• Safari content filters are imperfect. They block the obvious. A determined browser, particularly via in-app webviews in social apps, finds workarounds.
• App Limits can be “ignored” for 15 minutes by the child unless you’ve set “Block at End of Limit” on. Turn that on.

Even with all of this, the honest position is the one Knock has had since day one: the locked-down smartphone is a sensible answer if a smartphone is genuinely required. A basic phone is a simpler answer if it isn’t. The wider take is at /the-risks and /best-simple-phones.

If you have decided on the iPhone route, the Knock review of the refurbished iPhone SE (3rd gen) is at /reviews/refurb-iphone-se-3; from around £169 at Back Market UK, with the longest software support in the smartphone market. The Android equivalent of this walkthrough is at Google Family Link, the UK setup walkthrough.

Common questions

Do I need Family Sharing to use Screen Time on my child’s iPhone? Yes. Family Sharing is the parent layer; Screen Time is the device-side controls. Family Sharing lets you approve App Store purchases and downloads, share Apple TV+, and remote-manage Screen Time on a child’s device.

What’s the minimum age for an Apple ID? 13 in the UK. For under-13s, you create an Apple ID for your child through Family Sharing, which sets the same protections automatically until they turn 13.

Can my teenager turn Screen Time off? Only if you’ve not set a Screen Time passcode. Set one and they cannot disable it. The Apple Help pages cover the setup.

Is a refurbished iPhone SE a sensible smartphone choice for a UK child? If a smartphone is the answer, yes. A refurbished iPhone SE is around £169 at Back Market UK, has the longest software support in the smartphone market, and Screen Time is the most developed parental-control system. The Knock review is at /reviews/refurb-iphone-se-3.

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Sources: Apple Family Sharing and Screen Time support pages on support.apple.com.