ClearSpace vs One Sec:
an exercise to complete, or a pause to sit with

ClearSpace and One Sec both put a moment of friction between you and a distracting app, but the friction looks different. ClearSpace varies the exercise, breathing, a physical rep, a short mindfulness check-in, and then asks you to set your own access timer. One Sec is a single, fixed breathing pause with a specific published result behind it and nothing to configure.

This page compares the two products directly. For how either one stacks up against Fella specifically, see Fella vs ClearSpace or Fella vs One Sec, or read on for where Fella fits as a third option.

Both products bet that a moment of resistance can change the outcome. ClearSpace varies the resistance and adds a personal choice afterward. One Sec keeps the resistance fixed and points to a specific study measuring how often it works.

ClearSpace's exercise menu is genuinely varied. Depending on setup, opening a restricted app can prompt a breathing exercise, a short mindfulness check-in, or a physical rep like pushups, squats, or jump rope, giving you some choice in how the friction feels.

One Sec offers one mechanism, done the same way every time. There's no menu of exercises to pick from, just a breathing pause within the 5-15 second effective range, plus optional Strict blocks with Cheat Locks for a harder version.

Variety and consistency both have real tradeoffs. ClearSpace's variety can keep the exercise from becoming stale. One Sec's consistency means you always know exactly what to expect, and its specific mechanism is the one that's been independently studied.

One Sec points to a specific, credible result. The Max Planck Institute and Heidelberg University study, published in the Proceedings of the National Academy of Sciences, found the pause reduced app openings by roughly 57% on average, a genuinely strong, well-documented outcome.

ClearSpace's current materials don't cite an equivalent study of its own mechanism. That doesn't mean its breathing and exercise-based friction doesn't work, it's built on similar reasoning, but the specific number backing One Sec isn't something ClearSpace's current documentation independently establishes for itself.

Reviews add another layer worth weighing. App store reviews of ClearSpace describe a mixed experience, real usefulness for some, alongside reports of a slow interface and a Chrome extension that can be routed around. That's a separate concern from the underlying friction philosophy, but worth factoring in.

Choose ClearSpace if variety in the interruption appeals to you. A rotating exercise, plus accountability partners and challenges, gives you more to engage with than a single repeated pause.

Choose One Sec if you want the cheaper option with a specific published result behind it. Its lower price and the Max Planck Institute study make it the more evidence-backed and budget-friendly choice.

Factor in ClearSpace's reported interface issues before committing. If reliability matters as much as the underlying philosophy, the review pattern around ClearSpace's app performance is worth checking directly before subscribing.

ClearSpace and One Sec both leave the outcome in your hands once the friction is complete. Clear the exercise, and ClearSpace lets you in with a timer you set yourself. Breathe through the pause, and One Sec's app opens the same as it would have without the interruption.

Fella removes that moment of decision entirely. There's no exercise to clear and no pause to act on. Selected iPhone apps stay blocked from the first open, with one 5-minute emergency unlock per session, already decided rather than something to choose in the moment.

The right pick depends on whether the interruption itself usually works for you. If completing an exercise or sitting through a pause reliably makes you close the app, ClearSpace or One Sec is already doing that job. If you've caught yourself clearing the exercise or breathing through the pause on purpose, that's the gap Fella is built for. See how Fella works or current pricing.