One Sec alternatives: friction pause vs a hard block, and who each is for
One Sec is a pause, not a wall. Whether you need an alternative depends on which of those two you have outgrown. This page describes what One Sec does in its own words, sets the pause model against hard enforcement, and compares five alternatives using only what their App Store pages and sites say. We build one of the five, so weigh that row accordingly.
The short answer
- One Sec inserts what its FAQ calls "a gentle pause" before a distracting app opens, and can repeat it after a set time. Full blocking is available but is not the core.
- One Sec is free for one app; Pro is $2.99 a month, $19.99 a year or $99.99 lifetime on the US App Store.
- If you tap through the breath on autopilot, you have outgrown friction. The alternatives that enforce are Unbudge, Opal's Hard Mode, Jomo's strict mode; the ones that stay in the friction family are ScreenZen and ClearSpace.
- Every enforcing blocker on iPhone runs on Apple's Screen Time system, which we measured to refuse blocks shorter than 15 minutes.
Prices are from the US App Store in-app purchase lists as shown on 2026-09-12. Mechanism descriptions are quoted or paraphrased from each app's own page. We did not run every app on a device.
What One Sec actually does
One Sec's App Store page describes an intervention rather than a block: "a deep breath animation whenever you open" an app you configured. Its site lists the intervention types: "Take a deep breath", "4-7-8 breathing", "Mirror", "Conversational Reflection", "Rotate Phone" and "Type random text". After the pause you choose to continue or not. The App Store description adds a "re-intervention": after a set period, for example 5 minutes, you are "kicked out of social media" and must complete another intervention to go on.
Blocking exists too. The FAQ says "you can set up blocks so that configured apps or sites can't be opened at all", and the App Store page mentions blocking apps during scheduled times and a Safari extension for websites. The free version, per the FAQ, "allows to set up a breathing interruption for one app"; Pro unlocks unlimited apps.
The site's headline claim is "57% fewer app openings, on average", which it attributes to research with the Max Planck Institute and Heidelberg University. We are quoting the claim, not verifying the study.
| One Sec fact | Source wording |
|---|---|
| Core mechanism | FAQ: "a gentle pause that one sec inserts before you open a distracting app" |
| Repeat | FAQ: interruptions "can be repeated after a set amount of time (Re-Interventions)" |
| Hard block | FAQ: "you can set up blocks so that configured apps or sites can't be opened at all" |
| Free tier | Site: "Essentials are free." FAQ: one app |
| Pro price (US App Store) | $2.99/month, $19.99/year, $99.99 lifetime; family plans $4.99/month, $29.99/year, $149 lifetime |
| Free trial | Not stated on the pages we opened |
Friction vs enforcement: two different jobs
A pause and a block solve different problems, and each has a failure mode the other does not.
| Friction pause (One Sec, ScreenZen, ClearSpace) | Hard enforcement (Downtime, Unbudge, Opal Hard Mode, Jomo strict) | |
|---|---|---|
| What it interrupts | The reflex to open | The ability to open |
| Best at | Daytime autopilot: the 40 openings you did not decide to make | Known bad hours: the 11 pm to 1 am hole you decide to make every night |
| Fails when | You learn to wait out the breath; the pause becomes part of the habit | The off switch is one tap, or the break has no end |
| Cost of the exit | A few seconds, every time | A break of fixed length, or a passcode someone else holds |
| Shortest unit | Seconds | 15 minutes on iPhone (Apple's system floor, measured) |
| Feels like | Being asked | Being told |
The 15-minute figure is not a design choice. Apple's Device Activity framework rejects intervals that are too short with an error Apple documents as intervalTooShort: "The activity's schedule has an interval that is too short." On an iPhone 14 running iOS 26.5, on 2026-08-09, we measured 5- and 10-minute schedules rejected and 15 and 20 minutes accepted. A pause app can work in seconds because it is not asking the system for a block; an enforcing app cannot go under 15 minutes for the parts that are real shields.
Five alternatives from their own pages
Two stay in the friction family, three enforce. Prices are US App Store in-app purchase lists on the check date.
| App | Family | Price | Mechanism in its own words | Consider it if |
|---|---|---|---|---|
| ScreenZen | Friction, with a lock option | Free. Site: "ScreenZen is completely free." Tips $5 to $40 | "The pause and the prompts that it gives you before it unlocks the app"; limited unlocks per day; "a lock mode that protects against common loopholes"; password-protected settings | You want One Sec's idea, free, with a cap on how many times a day you can get through |
| ClearSpace | Friction plus daily limits | Premium $6.99/month, $44.99/year | A "breathe screen" before opening; daily app limits that relock after the time expires | You want the pause and a budget in one app |
| Jomo | Enforcement, adjustable | Free tier; Plus $5.99/month, $29.99/year, $99.99 lifetime | "Block distracting apps your way: at set times, after a limit, or until you take action." "Apps are just blocked, but you can always unlock if you really need to," or lock the block so it cannot be disabled | You want a block most days and a soft exit some days, and you trust yourself to choose |
| Opal | Enforcement, with a hard mode | Free plan (1 rule); Pro $99.99/year, $19.99/month, $399 lifetime; weekly $4.99 on the App Store | Sessions with a break: "choose the app you want to use, write your intention, and set a timer." Hard Mode: "No way out. You can't turn Opal off." | You want sessions, soundscapes and a score, and the price is not the constraint |
| Unbudge | Enforcement, schedules only | Free for 3 apps and 1 schedule; Pro $29.99/year or $3.99/month, no trial | Blocks on a schedule; a 15-minute break that relocks by itself with the app closed; Strict mode removes breaks; shield shows the schedule and unlock time; tells you when the block is not up | Your problem is a known window, and the exits are what beat you |
A note on trials: Opal's pricing page offers "Start Free Week" on the annual plan and "Start Free 3 Days" on monthly; One Sec, Jomo and ClearSpace do not state a trial on the pages we opened; ScreenZen has nothing to convert to; Unbudge states it runs no trial. If forgetting to cancel is part of your pattern, that column matters more than the price column. The wider table with Freedom and Brick is in Best app blocker for ADHD on iPhone in 2026; the Opal-specific breakdown is in Opal alternatives.
What no alternative changes
- Deleting. Apple's Family Controls documentation protects only child users authorized by a parent from deleting a parental-controls app. An adult can delete any of the apps above. The setting that closes that door is Screen Time › Content & Privacy Restrictions › iTunes & App Store Purchases › Deleting Apps › Don't Allow, behind a passcode someone else keeps: see Deleting the app bypasses your blocker.
- The 15-minute floor. Any block or break run through Apple's system is at least 15 minutes. Pauses can be shorter because they are not blocks.
- Apple's own tools are free. Downtime with Block at Downtime is a hard window at no cost; its weakness is a grey hourglass and a one-tap off switch if no passcode is set. The comparison with App Limits is in Downtime vs App Limits on iPhone.
Frequently asked questions
Does One Sec block apps or just delay them?
Its default is a delay. One Sec's FAQ describes a gentle pause inserted before you open a distracting app, with re-interventions that repeat the pause after a set time. The same FAQ says you can also set up blocks so that configured apps or sites cannot be opened at all, so full blocking exists, but the product is built around the pause.
What is the best free alternative to One Sec?
For the same pause-before-opening idea, ScreenZen states on its site that it is completely free, with optional tips, and adds limited unlocks per day and a lock mode. For a hard block on a schedule, Apple's own Downtime with Block at Downtime is free, and Unbudge is free for 3 apps and 1 schedule.
When is a friction pause not enough?
When you have already learned to wait it out. A pause works by interrupting autopilot; once the breath becomes part of the autopilot, the app opens anyway. The signs are that you tap through the pause without reading it, that the re-intervention has become a rhythm, or that late-night use has not changed. At that point the tool you need is a block with a fixed window and a break that ends by itself.
Unbudge: the enforcement option with honest exits
Unbudge does not pause you; it blocks on a schedule and holds. A break is 15 minutes, stated as the shortest iPhone allows, and the block returns on its own even if Unbudge is never reopened. The shield shows which app, which schedule and when it opens again. Free for 3 apps and 1 schedule, no trial, no account.
Unbudge
ADHD app blocker for iPhone. Schedules, 15-minute breaks that relock on their own, no free trial that turns into a charge
Free for 3 apps and 1 schedule · Pro $29.99/year or $3.99/month, no free trial that converts · No account, no ads, data stays on the phone · How Unbudge works
Related guides
- Best app blocker for ADHD on iPhone in 2026 — eight apps on price, trial, break, deletion and minimum block.
- Opal alternatives — Opal's price table and the no-trial stance.
- App blocker for ADHD: what actually works on iPhone — judge a blocker by its exits.
- Deleting the app bypasses your blocker. Here is the fix
Sources
All checked on 2026-09-12.
- App Store, "one sec | screen time + focus" — prices, description
- one sec site — intervention types, "Essentials are free", 57% claim
- one sec FAQ — gentle pause, re-interventions, blocks, free version one app
- App Store, "ScreenZen- Screen Time Control" and ScreenZen site
- App Store, "ClearSpace: Reduce Screen Time"
- App Store, "Jomo - Screen Time Blocker" and Jomo site
- App Store, "Opal: Screen Time Control" and Opal pricing page
- App Store, "Unbudge: ADHD App Blocker" and Unbudge site
- Apple Developer Documentation, "Family Controls"
- Apple Developer Documentation, "DeviceActivityCenter.MonitoringError" — intervalTooShort
- KANAU WORKS device log, iPhone 14 on iOS 26.5, 2026-08-09: schedules of 5 and 10 minutes rejected with intervalTooShort, 15 and 20 minutes accepted.