Apps like Opal: which blocker fits which problem?

Among apps like Opal, choose Opal when you want scheduled focus sessions and progress reports, one sec when reflexively opening an app is the problem, Brick when leaving a physical object elsewhere would help, and ScreenZen when you want a configurable free app. None solves every version of distraction.

If you routinely override rules you made alone, another solo blocker may reproduce the same problem. First identify whether you need insight, a pause, physical distance, a free set of limits, or an agreement with another person. Then choose the least complicated mechanism that supplies it.

Research note: this is a desk comparison of official product pages, US App Store listings, and Apple’s most-recent US customer-review feeds checked on 23 August 2026, with public Reddit threads opened in full and App Store listings re-read on 9 September 2026. We did not conduct hands-on testing. Storefront prices, eligibility, features, and public discussion can change.

Which problem does each blocker actually solve?

The useful question is not “Which blocker is strongest?” It is “At what moment does my plan fall apart?”

Test one mechanism against one problem for a week. Switching on every strict setting at once makes it hard to tell what helped and gives ordinary exceptions more chances to dismantle the plan.

How do Opal, Brick, one sec, and ScreenZen compare?

These rows compare declared mechanisms, not measured effectiveness. A long feature list is not evidence that a product will fit your habits, and an App Store star rating is not a controlled comparison.

What do recent App Store reviewers say?

Recent reviews show which edge cases deserve a trial; they do not establish a reliable ranking. We sampled the 50 most-recent US customer reviews Apple returned for each app on 23 August 2026. The windows differ sharply because review volume differs, and every submission is self-selected and unauthenticated beyond its public Apple account.

The pattern worth borrowing is specificity. “Reduced my screen time” tells you little; “I leave the Brick in the kitchen overnight” identifies a mechanism you can reproduce. Likewise, a complaint about an update, setup step, or timer tells you exactly what to verify before paying.

What do long-form user reports add?

App Store reviews are short and written at a moment of feeling. Longer public write-ups add detail worth testing, and three themes recur.

Cumulative limits are the thing to verify first. This is the sharpest finding, because it concerns a feature the comparison table above lists. In a January 2026 r/nosurf thread, someone wrote that they had set a two-hour cumulative limit across several apps in Opal and “blew right past it and nothing happens.” A second person in the thread reported the same problem. That poster eventually uninstalled and bought a Brick, concluding: “I have yet to find an app that tracks and manages usage well with hard barriers. Only defined time blocks work.”

This is not a universal verdict, and the same thread contains its own counter-example — another commenter said they had used Opal in exactly that way for over a year and preferred it to the built-in iOS setting. That disagreement is the useful part. If your requirement is “count my minutes across several apps, then block them,” do not assume any product does it: set a deliberately short test limit on a harmless app on day one of your trial, spend the time, and watch what happens. Scheduled blocks and cumulative limits are different features, and the second is the one that fails quietly.

Interventions can wear off. In an August 2025 r/nosurf thread, someone who had bought a one sec lifetime plan described it working well at first and then fading: “over time I felt like it became less and less effective. It stopped blocking me as much.” Read carefully, that is a description of habituation rather than a malfunction — a pause you have seen a thousand times stops being a pause.

That reframes what a pause tool is for. A commenter in a November 2024 thread described one sec’s real contribution as awareness rather than restriction: it “doesn’t block you, so much as a requirement you to think about whether you actually want to use the app,” and “even those few second delays can be very informative.” If you are buying a lifetime plan, buy it for the awareness, and plan for the friction to decay.

Cost is not only the subscription. The author of a February 2026 write-up on testing Opal credited its interface and its hard-to-bypass mode, then uninstalled, calling the pricing “absurd” and the free version “basically a demo.” A commenter in the same thread described removing it from an iPhone 16 over battery drain despite finding it genuinely helpful. Battery and stability complaints also appear in the App Store feed sampled above.

Stability reports do move, and it is worth saying so rather than freezing a product at its worst month: in the 2024 thread, one person described Opal crashing constantly, and another returned two years later to say it had become far more stable. Check current reports, not the loudest historical one.

One last practical detail, easy to miss until it blocks you: a commenter in that 2024 thread ran into caps on how many apps a blocker would cover — “Like 49 for some of them” — and chose Opal partly because its allowlist approach suited someone with a large number of apps. If you intend to cover a long list rather than three apps, check that limit before subscribing.

How should you read Reddit recommendations in this category?

If your research continues on Reddit — and for this query it usually does — you should know that the corpus is partly planted.

Across the threads we opened on 9 September 2026, developers recommending their own products as though they were satisfied users were common enough that members called it out in public. The top comment on one of the threads quoted above was an accusation aimed at the poster: “You constantly promote your app as one you discovered and found useful, rather than stating that you created it.” The top comment on r/nosurf’s most-upvoted iPhone blocking guide was “Stop posting ads for your app.” We also watched a single account recommend the same product in two unrelated threads within the same sitting.

Three habits make the corpus usable again:

1. Weight complaints above recommendations. Almost nobody has a commercial reason to invent a specific battery problem, a limit that failed to fire, or a feature discovered behind a paywall. Enthusiastic recommendations are the cheapest thing to fake.
2. Distrust any comment that names a product you have not heard of and describes it in marketing cadence. Especially when the account’s history is short, or when the recommendation arrives as a reply to a complaint about a competitor.
3. Prefer reports that name a mechanism. “It changed my life” is unfalsifiable. “I set a two-hour cumulative limit and it did not fire” is a test you can run this afternoon.

We are not a neutral party here either: we make Scrollmates, and this article recommends it for one narrow case. Apply the same rule to us. The claim to test is the specific one — whether a shared pool changes anything for two particular people — not the vibe.

What do these options cost for one person and for two?

The figures below are US prices displayed by the companies or US App Store on 23 August 2026. Taxes, promotions, regional storefronts, Family Sharing eligibility, and checkout offers can change the total.

Price only matters after the mechanism fits. A free tool you dismiss every morning can be expensive in attention; a paid tool that duplicates a phone setting you already use may add nothing.

When is Opal the right fit?

Opal fits someone who wants a focus system rather than a single speed bump. Its official listing includes scheduled sessions, app and website blocks, allowlists and blocklists, limits, a Focus Report, Focus Score, calendar and routine features, and integrations with Focus Mode and Shortcuts.

The listing also describes a “Deep Focus” mode that cannot be cancelled or bypassed. Treat that as Opal’s description of its mode, not as a guarantee that every operating-system edge case is impossible.

Choose Opal when:

• You plan distraction-free work or study windows in advance.
• Seeing patterns and progress is part of what keeps you engaged.
• You want several focus tools in one interface and accept a subscription.

Verify one thing during the trial: if you intend to use cumulative daily limits rather than scheduled sessions, test that path deliberately, because multiple public reports describe those limits not enforcing while scheduled blocks did. Opal is the largest and most-reviewed product in this comparison — around 87,000 US App Store ratings when we checked on 9 September 2026 — so it also generates the most reports of every kind. Scale is a reason to read complaints carefully, not a reason to discount them.

Look elsewhere when you need only a pause before one app, want no recurring fee, or specifically want another person to share the same limit. Opal’s social features do not turn its individual focus sessions into a shared budget.

When is one sec the right fit?

one sec targets the tiny gap between reaching for an app and consciously choosing it. Its interventions include a breathing prompt and other deliberate actions; the free tier lets you try the approach with one app before deciding whether to pay for more.

That makes it a clean first test when your complaint is, “I opened it without thinking.” It is less directly matched to someone who already makes a deliberate decision to ignore a limit after several minutes.

Choose one sec when:

• Automatic opening is the behaviour you want to interrupt.
• You want to test one target app at no cost.
• You need an explicit family subscription rather than buying two individual plans.

Look elsewhere when you want a physical commitment device or a detailed planned-focus dashboard. Also remember that a family payment plan does not make one person accountable to another; it simply covers access.

When is Brick the right fit?

Brick makes the environment part of the rule. You tap the hardware to activate a mode on your phone, leave it somewhere else, then return to it to deactivate the block. The official app listing also describes remote activation, timers, Strict Mode, custom modes, and five Emergency Unbricks.

Choose Brick when:

• The trip back to a physical object would create a useful moment to reconsider.
• You want to pay once rather than keep a software subscription.
• You use Android, or a two-platform household wants the same hardware model.

Look elsewhere when you travel lightly, frequently need to change modes away from home, or do not want another object to manage. One Brick can serve several phones, but everyone must be comfortable with its location and access. Two independently placed Bricks may be more practical than one shared unit, at twice the standard hardware price.

Brick is not literally inescapable: its own materials describe Emergency Unbricks. That is a reasonable safety valve, and it is also why “impossible to bypass” would be the wrong promise.

When is ScreenZen the right fit?

ScreenZen is the straightforward starting point when cost is the obstacle. Its official listing describes a delay before an app opens, optional increasing wait times, limits by time range, app opens or screen time, configurable schedules, custom messages, usage goals, settings locks, and streaks. The app is listed as free and donation-supported.

Choose ScreenZen when:

• You want to combine a pause with simple time or open-count rules.
• You need to configure different days and times for different apps.
• You want to try a no-subscription app before buying hardware.

Look elsewhere when the missing ingredient is another person’s involvement rather than another rule. ScreenZen’s free app is still self-administered.

Halo is a separate ScreenZen option for a different problem: the official page says it uses a room-sized radius to block selected apps and sites, costs $49 once, works with multiple devices, and requires an account to manage the device. It is currently advertised as US-only. Consider it when a location such as the bedroom is the trigger; do not buy it merely because you are looking for the free ScreenZen app.

What limitation do all four choices share?

Opal, one sec, Brick, and the free ScreenZen app primarily help a person shape their own access. Their mechanisms differ, but the person making the rule is also the person who will meet the exception: the urgent message, the unusual workday, or the moment when “just today” sounds convincing.

Brick and Halo add an external object. one sec sells family access. Opal lists leaderboards. Those features can change friction, payment, or visibility, but they do not automatically create a fair agreement between two people.

The habituation reports above are the clearest symptom of this shared limitation. A pause, a schedule, or a block screen is a message from you to yourself, and the recipient learns to read past it. An external object such as a Brick resists that longer because the cost is physical rather than attentional. Another person resists it longer still — but only if that person is genuinely participating, which is a different problem and one no blocker solves.

Before buying another blocker, try this short diagnostic:

1. Write the exact moment you want to change: “opening short videos in bed”, not “too much screen time”.
2. Name the break point: no awareness, too little friction, easy override, or no social commitment.
3. Test the matching mechanism for 7 days with one rule.
4. Review what happened without treating a lapse as a character flaw.

Keep the trial small enough to diagnose:

Problem moment: ______________________
Mechanism tested: pause / schedule / physical object / free rule
One app covered: _____________________
Useful interruptions this week: ______
Times the rule blocked a real need: ___
How I got around it: _________________
Keep, adjust, or stop: _______________

If the mechanism helped but the settings were wrong, adjust it. If the mechanism never touched the break point, switching brands without changing the design is unlikely to help.

What if a solo blocker is the wrong system?

Some people do not need a more forceful blocker. They need a small agreement with one person who is trying to change the same habit.

Scrollmates takes that route for exactly two consenting iPhone users. Each person privately chooses the apps covered on their own phone, and both draw minutes from one shared daily pool. They can see aggregate covered minutes, each person’s share, scrolling presence, and bond events, but never one another’s selected app names.

It costs US $5.99 monthly or $29.99 yearly for a bonded pair, with one subscription covering both people. The solo mode is free and accountless.

This is not a substitute for Opal’s reporting, one sec’s opening intervention, Brick’s physical device, or ScreenZen’s free configurable rules. It is also not an unbreakable blocker, a parental or employee monitor, or a fit for groups. Apple can delay or miss Screen Time events, so the shared total is a coordination signal rather than forensic proof. Scrollmates is not available on Android, and either person must be free to decline or leave the bond.

Choose it only when both people want the same shared mechanism. If one person wants to inspect or control the other, do not use a shared screen-time tool.

Frequently asked questions

Which app like Opal is free?

ScreenZen’s current US App Store listing describes the app as free and donation-supported. one sec also has a free tier for one target app. Features and prices can change, so check the current storefront before choosing.

Does Brick require a subscription?

No. Brick’s official US product page lists the standard hardware price as $59 and says app access has no recurring fee. One Brick can work with multiple phones, although sharing its location may not suit every pair.

What is the difference between one sec and Opal?

one sec centres on adding a deliberate interruption before an impulsively opened app. Opal offers a broader system of scheduled focus sessions, limits, reports, and routines. Choose the mechanism that matches the moment you want to change.

Is ScreenZen hardware or an app?

Both products now exist, but they are separate offers. The ScreenZen app is free and donation-supported. Halo is optional $49 hardware, currently US-only, that applies selected blocks within a configured radius.

Which Opal alternative works for two people?

Brick can work with multiple phones, one sec sells family plans, and ScreenZen’s Halo supports multiple devices. Those are access or payment arrangements, not a shared accountability mechanism. If two people specifically want one shared pool, Scrollmates is built for that narrower iPhone use case and requires both people’s consent.

Choose the break point, not the longest feature list

Start with the moment your current plan breaks. Use one sec for an automatic opening, Opal for planned focus and insight, Brick for a physical commitment, and ScreenZen for flexible free rules. If the actual problem is making and cancelling every decision alone, have the conversation before adding another control.

Try one mechanism for 7 ordinary days. Keep it if it makes the desired choice easier without creating a new burden; change it if it solves a different problem than yours.