How to Block Threads on iPhone
Set a Screen Time App Limit on Threads, and block threads.net and threads.com in Safari too — Instagram will keep pointing you back to it.
Blocking Threads on iPhone means setting a Screen Time App Limit under the Social category, then closing two gaps most people miss: the Threads website, which answers to both threads.net and threads.com, and the fact that Instagram — running under its own separate account link — keeps surfacing Threads content and offering a one-tap way back in. Screen Time is Apple's built-in usage-management framework, and it enforces the block, not Threads and not any third-party app.
How do you set a Screen Time limit on Threads?
- Open Settings → Screen Time → App Limits.
- Tap Add Limit, then choose Social (Threads sits in this category) or search for Threads directly and select just that app.
- Set a time — many people use 1 minute to make the app effectively unusable rather than picking a longer allowance.
- Choose the days it applies (every day, or just weekdays).
- Tap Add.
If you haven't already, set a Screen Time passcode under Screen Time → Lock Screen Time Settings, separate from your device passcode. Without one, you can delete the limit whenever you want, which defeats the point. Menu wording shifts slightly between iOS versions, but the App Limits path has held steady for several years.
Why does the Threads limit stop working after a few days?
When the limit is reached, iOS shows a screen with an Ignore Limit button offering "one more minute," 15 more minutes, or the rest of the day. Tap it, enter the Screen Time passcode if one is set, and the block disappears for that period. At midnight, every App Limit resets to zero regardless of how much of it you used.
Threads runs on the same kind of algorithmic pacing as Instagram's main feed — posts arrive with no natural end, and there's no "you're caught up" moment to signal that you're done. That makes the Ignore Limit button an easy tap: there's always more feed waiting, so the cost of stopping never feels higher than the cost of continuing.
Does blocking the Threads app also block threads.net and threads.com?
No. An App Limit only recognizes the Threads app icon — it has no effect on threads.net or threads.com opened in Safari. Both hostnames resolve to the same product and serve the full feed, so blocking one while leaving the other open accomplishes little.
To close this, go to Settings → Screen Time → Content & Privacy Restrictions → Content Restrictions → Web Content, choose Limit Adult Websites, then add both threads.net and threads.com under the "Never Allow" list. This restricts the domains in Safari specifically; it won't touch any alternative browser installed on the phone, so check for one if this matters to you.
What still works after you block Threads?
Instagram shares the same account as Threads and surfaces Threads posts directly inside its own feed, along with a one-tap path into the Threads app itself. A Threads App Limit does nothing to stop this — if the reason you're blocking Threads is to get off a feed entirely, Instagram will need its own separate App Limit, or you'll end up reading the same content through a different door.
What makes Threads specifically hard to stop opening?
The feed itself runs on Instagram's algorithmic pacing rather than a strict chronological order, so there's always something new to see regardless of how recently you checked. On top of that, the account linkage to Instagram means the app keeps getting re-suggested to you through cross-posts and prompts, which makes it harder to simply forget about the way you might with a fully standalone app like Snapchat or X (Twitter). If this compulsive-checking pattern shows up across more than one app for you, the guide on how to stop doomscrolling covers the broader habit rather than just this one app.
What's the most realistic way to actually block Threads?
| Approach | What it does | Honest verdict |
|---|---|---|
| Screen Time App Limit on Threads | Blocks the app icon after the set time | Doesn't touch threads.net, threads.com, or Instagram's cross-posted Threads content; easy to override with Ignore Limit |
| Downtime schedule | Blocks Threads (and most apps) during set hours | Good for "no Threads after 10pm"; useless against daytime scrolling |
| Deleting the app | Removes the icon and app entirely | Effective immediately, but threads.net and threads.com still work in Safari and reinstalling takes seconds |
| Blocking threads.net and threads.com | Closes the Safari loophole | Necessary alongside an App Limit, not a substitute for one |
| Conditional unlock (e.g., Step N Scroll) | Keeps Threads locked until a daily step goal, set via Apple Health, is met | Adds a real cost to unlocking beyond a passcode tap; doesn't suit people who want a free tool, can't walk much, or use Android — there's no Android version |
For blocking more than one distracting app at a time — say Threads alongside Instagram — the same App Limit and Content Restriction steps apply per app, and the full list of app guides covers the specifics for each one.
What can't a Screen Time block fix?
No setting here makes Threads physically impossible to open — you can always change Content & Privacy Restrictions, delete the blocking app, or work around a limit if you're determined enough. Screen Time raises friction; it doesn't remove your ability to override it, and it can't stop Instagram from surfacing the same content through a different app.
The evidence that app-blocking tools change long-term social media habits is thin and mostly observational — most studies track short-term usage drops, not sustained behavior change, and few isolate the blocking tool as the cause rather than the reader's own decision to try one. If you've already blocked Instagram and found yourself on Threads instead, a Screen Time limit on both is a reasonable structural aid, but it won't address why one feed so easily substitutes for another — that's a conversation for a person, not a setting.
FAQ
Does blocking Threads with Screen Time also block Instagram?
No. Threads is a separate app from Instagram, even though it runs on the same account. An App Limit on Threads has no effect on Instagram — you need to add Instagram as its own App Limit if you want it covered too.
Will Threads still work in Safari if I set an App Limit?
Yes, unless you separately restrict it. Both threads.net and threads.com serve the full app in a browser, and an App Limit only recognizes the app icon, not the website. Block both domains under Content & Privacy Restrictions → Content Restrictions → Web Content.
Why do both threads.net and threads.com need to be blocked?
Meta runs the product on both hostnames, and either one loads the same feed. Blocking only threads.net and leaving threads.com open (or the reverse) leaves a working route straight back in.
What happens when I tap "Ignore Limit" on Threads?
iOS unlocks Threads for one more minute, 15 more minutes, or the rest of the day, depending on what you choose. If you've set a Screen Time passcode, it asks for that code first, which is the main way to make the button harder to tap without thinking.
Does deleting the Threads app delete my posts or followers?
No. Deleting the app only removes it from your phone; your account, followers, and posts stay on Meta's servers tied to your Instagram login, and reappear as soon as you reinstall and log back in.
Can an app like Step N Scroll see which apps I'm blocking?
No. Apple's Family Controls framework gives third-party apps opaque tokens representing blocked apps, not the app's actual identity. Developers in this category cannot see that you're specifically blocking Threads.
Sources
- Apple Support — "Set up Screen Time for yourself on iPhone"
- Apple Support — "Set content and privacy restrictions on iPhone"
- Instagram (Meta) — "Introducing Threads: A New Way to Share With Text"
- Pew Research Center — "Teens, Social Media and Technology"
Step N Scroll is a habit and screen-time tool, not a medical device. Nothing here is medical advice.