How to Permanently Block Porn on an iPhone Running an Older iOS Version

If your iPhone hasn't been updated in years, it's worth checking one specific thing before assuming the usual Screen Time steps apply: which side of iOS 12 it actually falls on.

The real dividing line is iOS 12, not the model year

Screen Time isn't a feature that got weaker on old phones — it simply didn't exist before iOS 12.

Apple introduced Screen Time, including Content & Privacy Restrictions and the Account Recovery option that goes with it, in iOS 12 in 2018. Any iPhone running iOS 12 or later has the exact same version of this feature, regardless of how old the hardware itself is — there's no scaled-down variant for older devices still receiving that update.

If your device is genuinely stuck below iOS 12

Before iOS 12, the equivalent feature was simply called Restrictions, found under Settings → General instead of Screen Time. It has its own separate numeric passcode and can still block adult websites effectively. What it doesn't have is Screen Time's Account Recovery mechanism layered on top — so if that older passcode is forgotten, there's no equivalent Apple Account reset path built into it the same way.

What this means in practice

For the restriction itself, the goal is identical either way: content blocked, passcode not known to you. Everything in our main iPhone guide applies directly if you're on iOS 12 or later, which covers the overwhelming majority of iPhones still in daily use. If yours genuinely predates that, the older Restrictions passcode still gets the core job done — just without the specific Account Recovery setting we cover for modern Screen Time.

ScreenVow is built around modern Screen Time on iOS 12 and later. See the security and encryption model behind it, or the full setup guide.