How to Lock Screen Time Settings on iPhone (So You Can't Disable Them)
Screen Time only works if you can't turn it off. Here's how to truly lock your Screen Time settings on iPhone.
How to Lock Screen Time Settings on iPhone (So You Can't Disable Them)
Apple's Screen Time is powerful — genuinely the strongest content and app restriction system available on iPhone, enforced at the OS level rather than by a deletable app. But it's completely useless the moment you can disable it whenever willpower drops, which for most people is exactly when they'd need it most. Here's how to actually lock it down for real, including a change in iOS 26 worth knowing about that most existing guides haven't caught up to.
Step 1: Turn on Screen Time
Settings → Screen Time → Turn On Screen Time
Step 2: Set a Screen Time passcode
Tap Use Screen Time Passcode and enter a 4-digit code. This passcode is required to: - Turn off Screen Time - Change content restrictions - Extend app limits - Disable Downtime
Notice that every single one of those actions requires the passcode — which means the passcode isn't just one setting among many, it's the master key to all of them. Whoever holds it holds the whole system.
Step 3: Skip the recovery email (or seal it)
Apple asks for an Apple ID for passcode recovery. If you enter yours, you can reset the passcode anytime — defeating the lock entirely, in about sixty seconds, from any device signed into that same Apple ID.
Two options: 1. Skip it (tap Cancel) 2. Use a partner's Apple ID for true accountability, if you have someone you trust to hold that
Step 4: Configure the restrictions you want locked
- Web Content → Limit Adult Websites
- iTunes & App Store Purchases → Installing Apps: Don't Allow
- Allowed Apps → disable Safari, Camera, etc. as needed
- Account Changes → Don't Allow
- Passcode Changes → Don't Allow
Step 5: On iOS 26, also turn on Supervised Mode
This is new, and most guides on this topic — including older versions of this one — don't mention it yet. As of iOS 26, Limit Adult Websites no longer automatically blocks private browsing tabs. If you're restricting your own device, Supervised Mode restores that coverage. Without it, your "locked down" Screen Time has a gap exactly where you're trying to close one, in the one place people are most likely to look when the usual door is shut.
Step 6: Lock the passcode itself with LockIn
The last weak link is you knowing the 4-digit code. Everything in Steps 1 through 5 is correctly configured and genuinely strong — right up until the moment you type in the code you set yourself. LockIn solves this specific problem, and only this problem:
- LockIn generates a random Screen Time passcode
- You enter it into iPhone but never see it again
- The code is sealed for your chosen duration (1 day – 1 year)
- Only LockIn can reveal it, and only when the timer ends
Now Screen Time is genuinely locked — even from you. Not "hard to change." Not "annoying to change." Actually impossible to change until the timer you set runs out.
What if I forget and want it back early?
That's the design, not a bug to work around. The whole point is that future you doesn't get to override present you — because if it could, this would just be regular Screen Time with an extra step, and regular Screen Time is exactly what didn't work before.
Troubleshooting
I locked it and now I can't change a setting I actually need. This is by design and can't be undone early — which is why it's worth being deliberate about exactly what you lock before starting the timer, not after you've already sealed it and discovered a setting you wish you'd configured differently.
Can someone else with my Apple ID undo this remotely? Yes, if they have your Apple ID credentials and you didn't skip recovery in Step 3. The lock is only as strong as your Apple ID security — which is precisely why Step 3 isn't optional if you're serious about this holding.
FAQ
Does this work the same on a shared family iPad? Family Sharing setups route through a different Screen Time flow entirely — this guide is specifically for locking your own personal device, not a managed family device.
What's the difference between this and Supervised Mode alone? Supervised Mode adds restrictions typically used on managed devices, including the private-browsing fix above. Lock Screen Time Settings (this guide) is what actually prevents you from turning any of it off in the first place. You want both — Supervised Mode closes a content gap, this locks the whole system shut.
Is there a minimum or maximum lock duration? LockIn supports anywhere from 1 day to 1 year. Most first-time users start shorter — a week or a month — and extend once they've seen it actually hold.