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Guide · Choosing a focus app

Opal and one sec alternatives: notice, don't just block

If you're searching for an Opal alternative, one of two things happened. Either the subscription stopped feeling worth it, or the blocking itself stopped working: you learned every override, and the app became a wall you climb daily. Both are fixable, but they point at different apps, and one of them points away from blocking entirely.

Honesty note: this page is published by Calibrate, which is not a blocker and appears in the third section. The blockers below are compared fairly, and if a wall genuinely works for you, the first section is where your answer lives. Details checked September 2026.

If you still want a wall (just a different one)

ScreenZen · iOS + Android · free

The best-known free answer: pauses, delays, and opening limits on the apps you choose. Less a wall than a series of speed bumps, and for many people the bumps are enough.

Good fit if: Opal's price was the problem and light friction works on you.
Main tradeoff: friction you designed is friction you can undo; it inherits the arms-race problem at a smaller scale.

one sec · iOS + Android · free tier

Forces one deep breath before a distracting app opens, then asks if you still want in. Backed by a published study with Max Planck Institute researchers showing real reductions in app opens. The most evidence-backed option in the friction school.

Good fit if: your reaches are autopilot and a single interrupt is enough to wake you up.
Main tradeoff: for some people the breath becomes ritual over time. And it interrupts the reach without asking what the reach was for.

Freedom · iOS + Android + Mac + Windows · subscription

The cross-platform veteran: scheduled block sessions that cover your phone and your computer at once, with a locked mode for the truly determined.

Good fit if: your distraction spans devices and you want one schedule ruling them all.
Main tradeoff: still a subscription, still a wall, still your own keys.

And the free option nobody markets: iOS Screen Time itself does app limits, downtime, and always-allowed lists at zero cost. Clunkier than Opal, but if walls work for you, the built-in wall is free.

Why walls keep failing the people who need them most

Most blocking is negotiable: you hold the keys, and under stress you use them, and each bypass teaches you the wall can be argued with. The blockers know this, which is why the serious ones offer truly locked modes (Opal's Deep Focus, Freedom's Locked Mode, Jomo's locked blocks) that cannot be ended early. Those genuinely close the loophole; the tradeoff is that the stakes rise, and many people quietly stop scheduling them. That's why blockers shine for bounded seasons (finals, a deadline week) and decay as a lifestyle. The deeper issue is what blocking doesn't do: it treats the reach for the phone as the problem, when the reach is usually a symptom. Bored, stuck, anxious, avoiding a hard email: the phone is where the feeling goes. Block the phone and the feeling finds another door.

The other philosophy: make the reach visible

Calibrate · iPhone, with check-ins on Apple Watch · free to start, subscription or one-time lifetime

Ours. Calibrate never blocks anything. Instead, work runs in gentle blocks tied to your to-dos; each block ends with an honest answer (on it, in and out, or away), and when you close a sitting you name what pulled at you: phone, noise, thoughts. Over your last sittings the pattern becomes one plain sentence, like phone came up in 4 of your 7 sittings, with one small suggestion. Seeing the pattern is the intervention: you stay the agent, and the app is a lamp, not a lock. The full argument is in beyond Screen Time.

Good fit if: you've climbed every wall you built and want to understand the reach instead of fighting it.
Main tradeoff: it asks something of you: honesty at the end of a block. People who want the app to do the resisting for them will find it does nothing of the sort, and it's iPhone only.

Jomo · iPhone + iPad + Mac · free tier

Blocking plus intention: focus sessions where you name what you actually want to do, app limits you can open intentionally or truly lock, and screen-time tracking built around awareness. A genuine middle path between the wall school and the noticing school.

Good fit if: you want to keep some blocking while starting to examine the habit underneath.
Main tradeoff: two philosophies in one app means neither is at full strength; the reflection lives inside the blocking flow rather than inside your actual work.

How to choose

Be honest about your history with walls. First blocker, defined season, clear trigger apps: a wall is fine, start with the free ones. Third blocker in two years, overrides memorized: the wall isn't the tool for you, and the noticing school exists precisely for that. Many people run both: Screen Time's free limits as a soft fence, and honest sessions inside it to learn what the phone was carrying for them all along.

Keep reading

Beyond Screen Time · Why do I get distracted? · Calm Pomodoro apps compared

A lamp, not a lock

Calibrate is on the App Store. Free to use, with unlimited focus sessions.

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