Search for the best app blocker and you get a list of products. The more useful question is which kind of blocker you need, because there are only three, and they fail in different ways. Here is what each one is genuinely good at, and how to tell which one is yours.
Nearly every tool here does the same visible thing: you pick some apps, and they stop opening. What actually separates them is where the off switch ends up — in Settings, inside another app, or on an object across the room — and what you pay to keep it there. Sorted that way, the choice gets much simpler, and most people who say a blocker “stopped working” had picked the wrong kind rather than a bad product.
Start with what is already on your iPhone
Apple’s Screen Time is free, already installed, and does more than most people realise: Downtime schedules, daily limits per app or category, website restrictions, and a report of what you actually used. Turn on Share Across Devices and the same limits and schedules apply to your iPhone, iPad and Mac.
It also has a weakness Apple states plainly in its own documentation: by default, Screen Time limits can be ignored once you reach them. You can close that — switching on Block at Downtime with a Screen Time passcode makes restricted apps genuinely unopenable — but the passcode lives on the phone you are trying to resist. That is why it holds so well on a child’s device, where a parent keeps the code on a different phone, and so poorly on your own.
Best for: everyone, first. It costs nothing to find out whether it is enough, and for a lot of people it is. Our step-by-step guide to blocking apps on iPhone covers the setup.
Software blockers: Opal, Freedom, one sec
These are apps that block other apps. They add rules Screen Time does not have, and they reach platforms Apple does not.
Opal runs on iPhone, Mac and Android. Its free tier gives you one rule with schedules and time limits; the paid Pro tier — monthly, annual, or a one-time lifetime licence — adds harder blocking difficulty and unlimited rules. It is the most designed of the three, and it turns your day into a single focus score you can watch move.
Freedom is the broadest. It covers Mac, Windows, iOS, Android and, through its browser extension, ChromeOS and Linux, and it blocks apps, websites or the entire internet with one session synced across every device at once. The free plan already blocks; Premium adds sessions that start on a schedule, repeat weekly, and a Locked Mode that stops you quitting partway through. Premium is a subscription, with a one-time “Forever” option alongside it.
one sec does the opposite of a wall. It puts a deliberate pause in front of the app — a breath, a moment — so the reflex breaks before the feed loads. Its site points to peer-reviewed studies run with the Max Planck Institute and Heidelberg University. Choose it if you want a lighter touch, not a stricter one.
Best for: anyone on Android or Windows, anyone who wants schedules and detailed stats, and anyone who wants to try something free tonight. Their shared limit is structural rather than a flaw in the craft: the thing that lifts the block sits on the device you are trying to put down. We go into that at length in hardware versus software.
Physical blockers: Brick and Norma
Both move the switch off the screen and onto an object. You start a session by holding your phone to it, and you end it the same way.
Brick is a small device you tap your phone against. It works with iPhone on iOS 17 or later and Android 12 or later, is bought once with no subscription, holds up to ten custom modes, and includes five emergency unbricks for the days you are away from it. Strict Mode closes the obvious loophole of deleting the app to escape. Its blocking is phone-side: Brick’s site lists an iOS and an Android app and no desktop app, so your computer is untouched.
Norma is a machined stainless-steel disc you scan with your iPhone; the apps you chose go quiet until you scan again. Also bought once, with no subscription and no battery. You group apps into presets for different parts of the day, stack rules on a session — a timer, a hardlock of up to two hours that not even you can end, auto-blocking when you arrive somewhere — and a free Mac app blocks the sites you chose in every browser on the same scan. It is iPhone-only, and it too keeps a limited number of emergency unblocks. If you are weighing the two directly, we wrote a head-to-head with Brick and Opal.
| Norma | Brick | Opal | Freedom | Screen Time | |
|---|---|---|---|---|---|
| You unblock with a physical object | |||||
| Works on Android | |||||
| Blocks on your computer | Mac | Mac | Mac + Windows | Mac | |
| Free version to try | |||||
| Ongoing cost | None | None | Subscription or lifetime | Subscription or lifetime | None |
So which one should you buy
- You have not tried anything yet. Screen Time. Free, already there, and enough for more people than the internet admits.
- You are on Android. Brick, Opal or Freedom. Norma is iPhone-only and will not work for you at all.
- You move between a Mac and a PC. Freedom is the only one here that covers Windows.
- You want schedules, stats and a score. Opal or Freedom. Norma has timers and location rules but no recurring weekly calendar, and it does not try to be a dashboard.
- You want to spend nothing. Screen Time, or the free tiers of Opal and Freedom.
- You keep lifting the block yourself. This is the one failure software cannot fix, and it is what the physical blockers exist for. Brick if you need Android or want the switch on a tap. Norma if you are on iPhone and want the same scan to clear your Mac.
- You will not carry another object. Then stay with software, honestly. A disc left in a drawer at home blocks nothing, and a device you resent is a device you stop using.
Punti chiave
- There are three kinds of blocker: built into iOS, software, and physical. Pick the kind first, the product second.
- Screen Time is free and often enough — but Apple notes its limits can be ignored by default unless you block at downtime with a passcode.
- Software blockers win on reach and scheduling: Freedom covers the most platforms, Opal the best stats, one sec the lightest friction.
- Physical blockers win on one thing only: you cannot end the session from the phone. That is worth paying for, or it is worth nothing to you.
- Norma is the wrong choice on Android, and for anyone who will not keep an object to hand.
The honest test
Ask which part actually failed last time. If you never knew where the hours went, you need a mirror, and Screen Time is free. If you knew and could not stop, you need reach and rules, and software is well built for that. If you knew, set the block, and then lifted it yourself at eleven at night — no software fixes that, because the button is always within reach.
Domande frequenti.
- What is the best app blocker for iPhone?
- It depends on which failure you keep hitting. If you have never tried anything, Apple’s Screen Time is free and already installed — start there. If you want schedules, stats and a free tier, Opal and Freedom are the strongest software options. If you keep lifting your own block in the moment, a physical blocker is the honest answer: Brick or Norma, where the session only ends when you tap or scan the object.
- What app blocker cannot be bypassed?
- None of them are unbypassable, and any tool that claims otherwise is overselling. What differs is how much work a bypass takes. Apple documents that Screen Time limits can be ignored by default, though turning on Block at Downtime with a passcode closes that. Freedom’s Locked Mode stops you quitting a session, and Brick’s Strict Mode stops you deleting the app. Physical blockers go furthest, because ending a session needs the object in your hand — both Brick and Norma keep a small number of emergency unblocks for when you are away from it.
- Is there an app blocker without a subscription?
- Yes, in three forms. Screen Time is built into iOS at no cost. Opal and Freedom both sell a one-time lifetime licence alongside their subscriptions, and both have free tiers. And the physical blockers — Brick and Norma — are bought once: the hardware is the purchase, and the app that comes with it has no recurring fee.
- What is the best website blocker?
- Freedom, if you want one tool covering every screen: it blocks websites on Mac, Windows, iOS, Android and, through its extension, ChromeOS and Linux. Screen Time can restrict websites on Apple devices at no cost. Brick can block a selection of Safari sites from Apple’s approved list on iPhone. Norma blocks the sites you choose on your Mac in every browser, triggered by the same scan that quiets your phone.
- Is Screen Time good enough on its own?
- For a lot of people, yes — and it costs nothing to find out. It gives you a weekly report, downtime schedules, per-app limits and website restrictions, and it syncs across iPhone, iPad and Mac. It is at its strongest on a child’s device, where a parent holds the passcode. On your own phone the passcode sits on the device you are trying to resist, so if you find yourself typing it in every evening, that is the signal to move to something else.
- What is the best focus app for deep work or studying?
- If you want sessions that start on their own and repeat every week, that is software: Freedom for recurring scheduled sessions across devices, Opal for timers and a focus score. If your problem is not planning but stopping — the session you end ten minutes in — a physical blocker suits you better, because there is no button to press. one sec is the lightest option: it adds a pause before an app opens rather than blocking it outright.
If the problem is the button, remove the button.
A stainless-steel disc you scan with your iPhone. The apps you chose go quiet, on your phone and your Mac, until you scan again. Bought once, no subscription.

Fonti
- 1.Apple · Get started with Screen Time on iPhone (limits, reports, Share Across Devices)
- 2.Apple · Set schedules with Screen Time on iPhone (limits can be ignored by default; Block at Downtime)
- 3.Opal · pricing (free tier, Pro subscription, lifetime option)
- 4.Freedom · plans (free plan, Premium subscription, one-time Forever)
- 5.Freedom · downloads (Mac, Windows, iOS, Android, ChromeOS, Linux)
- 6.one sec · official site (pause before an app opens, cited research)
- 7.Brick · FAQ (iOS and Android support, one-time purchase, Strict Mode, emergency unbricks)
- 8.Norma · official site (steel disc, presets and rules, free Mac app)
- 9.Features and prices change over time — check each maker’s own site for current details.



