Honest comparison · Reviewed May 8, 2026
ScreenFine vs One Sec
One Sec is a beautifully built friction tool. It inserts a pause and a breath between you and the apps you tap reflexively. ScreenFine is a different mechanism: a verified-exercise lock when you go past your daily limit. One Sec interrupts the trigger. ScreenFine penalises the duration. Many users end up using both.
Side by side
ScreenFine vs One Sec
| Feature | ScreenFine | One Sec |
|---|---|---|
| Annual cost | ~$52 / yr ($1/week) | $20-30 / yr |
| Free tier | Paid from day one | One app free |
| Hard-block overage consequence | 25 pushups / 15-min over | |
| Pause / breath before opening | | Their core feature |
| Total-device daily cap | The whole point | |
| Per-app limits | Pro tier | |
| AI personalised consequence | Six villains | |
| Public accountability | Wall of Shame, partner mode | |
| Pause anytime | | |
| Best for | Duration overruns, not just pickups | Compulsive opens of Instagram, TikTok, X |
Last fact-checked May 8, 2026. See One Sec for yourself .
Where ScreenFine wins
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A consequence after the pause
One Sec asks you to breathe and tap "Open anyway." For some people that pause is enough. The app is killed by friction alone. For others, the pause becomes part of the loop, the breath becomes the muscle memory that precedes the scroll, and the consequence of opening anyway is zero. ScreenFine adds the consequence: 25 pushups per 15-minute block you stay in. The pause may or may not work. The fine works.
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Cap on total time, not just pickups
One Sec is built around the pickup. The moment you tap the app icon. ScreenFine is built around duration. The total minutes per day. If your problem is "I scroll for two hours straight once I am in," the pickup pause does not help. ScreenFine triggers a lock on the second hour regardless of how the session started. Target apps stay blocked until you complete the redemption.
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Public accountability layer
One Sec is private. ScreenFine has the Wall of Shame (opt-in public feed of lock events and clean days) and partner mode. External accountability beats internal willpower for most people, especially after the novelty of any new tool wears off.
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Behavioural redemption
ScreenFine's 1-week fine redemption window (steps, workout, mindful minutes, pushups, squats) means the fine is a prompt rather than a punishment. One Sec has no equivalent. Once you have tapped through the breath and scrolled, the moment is gone.
Where One Sec wins
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Cheaper
One Sec runs $20-30 per year. ScreenFine is $52 per year for the subscription alone. If you only need the friction-pause mechanism and you genuinely respond to it, One Sec is the cheaper, simpler answer.
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Beautifully designed friction
One Sec's UI is one of the calmest, best-designed in the category. The breathing animation, the prompt copy, the typography are all considered. ScreenFine's aesthetic is the opposite. Chunky, slightly aggressive, designed to look like the consequence it is. If you want a calm, mindful tool, One Sec wins on tone.
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Solves the pickup problem cleanly
If your specific problem is the reflexive "open Instagram while waiting for the kettle" tap, One Sec's pause is genuinely the right intervention. ScreenFine does not address the pickup. It addresses the time spent once you are in.
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No financial commitment
One Sec subscription costs nothing if you ignore the pause. ScreenFine subscription costs $1/week regardless of overage frequency. The mechanism cost is exercise time, not money. If you are not sure you want to commit financially yet, One Sec is the lower-risk start.
Pick ScreenFine if
- + You have used One Sec for a month and your usage has not dropped meaningfully.
- + Your problem is duration on the apps, not the act of opening them.
- + You want a real consequence after the pause, not just the pause.
- + You think loss aversion will work on you better than a breathing exercise.
Pick One Sec if
- + Your problem is reflexive pickups. The autopilot tap on Instagram while waiting in line.
- + You respond well to mindful, calm friction.
- + You want a cheaper, simpler tool with no financial stakes.
- + You have not yet tried friction-based screen-time apps and want to start there before adding consequences.
Common questions
About ScreenFine vs One Sec
Should I use One Sec and ScreenFine together?
Many users do. One Sec handles the pickup. The breath before you open Instagram. ScreenFine handles the duration. The fine if you stay in past your daily limit. They are complementary mechanisms targeting different parts of the same loop. There is no conflict between the two apps.
Can ScreenFine add a friction pause like One Sec?
No. ScreenFine intentionally does not. The whole product thesis is that friction is bypassable and consequences are not. Adding a pause would dilute the mechanism. If you want the friction-pause approach, One Sec already does it well. Use them together.
I tried One Sec and it stopped working after a few weeks. Why?
This is a common pattern. Friction-based interventions have a half-life: the brain adapts, the breath becomes part of the ritual, and the friction stops being an actual interruption. The behavioural-economics literature calls this hedonic adaptation. ScreenFine's mechanism does not adapt away because the cost is the mechanism. You cannot get used to losing money, the way you can get used to a five-second breath.
Related reading
Ready to put real exercise on the line?
$1 per week via Apple IAP. 25 pushups per 15-minute overage block. No variable charges.