Answer Summary
Key Takeaways
On an iPhone you don't need to install anything: the tool is already there. It's called Screen Time, it lives in Settings, and it can block both websites and apps. Here's exactly where to tap.
Step by step
- Block websites: Settings → Screen Time → Content & Privacy Restrictions (enter Screen Time passcode) → App Store, Media, Web, & Games → Web Content → choose “Limit Adult Websites” (then tap “Add Website” under Never Allow to add a specific site) or “Only Approved Websites”.
- Limit or block apps: Settings → Screen Time → turn on App & Website Activity → App Limits → Add Limit → pick categories or individual apps → set time → Add.
- Downtime: Settings → Screen Time → App & Website Activity → Downtime → turn on Scheduled, set times; turn on “Block at Downtime” to enforce it.
Good to know
One note: Apple renamed this menu; it's now “App Store, Media, Web, & Games” (older iPhones called it “Content Restrictions”). And for accounts under 18, adult-website filtering may already be on; switching it off can require an adult in your Family Sharing group.
And the one block that never needs a setting: charge the phone outside the bedroom overnight, with a clock on the nightstand instead. It's part of the full guide to blocking websites and apps.