Does One Sec actually block apps?

No. One Sec doesn't block apps — it adds a mandatory delay (typically a breathing exercise) before you can open them. After the delay, you can still choose to open the app. The idea is that the pause breaks the automatic habit loop. Focuh takes the opposite approach: it blocks websites and apps entirely during focus sessions.

Does One Sec work on Mac?

One Sec has a Mac app, but it's primarily designed for iPhone. The iOS version has deeper integration with iOS Shortcuts for intercepting app launches. The Mac version is more limited. Focuh is built natively for macOS.

Is Focuh free compared to One Sec?

Yes. Focuh is completely free. One Sec has a free tier that covers one app, but full functionality requires One Sec Premium at around $4.99/month or $39.99/year.

Which approach is better for ADHD — friction or blocking?

It depends on your pattern. If you mindlessly open apps out of habit and a brief pause would break the cycle, One Sec's friction approach works well. If you know you'll dismiss the breathing exercise and open the app anyway, Focuh's hard blocking during focus sessions is more effective. Some ADHD users find friction works for casual browsing but need hard blocking during work sessions.

Focuh vs One Sec: 2026 Comparison

Compare Focuh and One Sec for managing digital distractions. One Sec adds friction with breathing exercises before opening apps, while Focuh blocks distractions entirely during focus sessions with integrated task management — for free.

January 14, 2026

What is One Sec?

One Sec is an app that adds intentional friction before you open distracting apps. When you try to open Instagram, Twitter, or other apps you've selected, One Sec intercepts the launch and presents a breathing exercise or delay screen. After the pause (usually 7-10 seconds), you can choose to continue opening the app or close it.

The philosophy is based on habit research: most social media use starts with an unconscious impulse. By adding a brief pause, One Sec breaks the automatic habit loop and gives you a moment to decide if you actually want to use the app. Studies cited by One Sec show this reduces app usage by around 57%.

What is Focuh?

Focuh is a free macOS app that combines website and app blocking with a focus timer, kanban-style task management, and Google Calendar sync. Built with Tauri, it uses macOS Accessibility APIs to block websites and apps completely during focus sessions.

Where One Sec adds friction, Focuh enforces boundaries. During a focus session, blocked sites and apps are simply inaccessible.

Friction vs. hard blocking — what's the difference?

This is the fundamental difference between the two apps. They represent two philosophies of behavior change:

One Sec's approach (friction): You can still use distracting apps, but the pause makes you conscious of the choice. Over time, this builds new habits. You're training yourself, not restricting yourself.

Focuh's approach (hard blocking): During focus sessions, distractions are blocked entirely. There's no choice to make — the sites and apps are simply unavailable. Outside of focus sessions, everything is accessible.

Neither approach is universally better. Friction works well for reducing casual, habitual phone usage throughout the day. Hard blocking works better when you need guaranteed uninterrupted focus time for deep work.

Feature	Focuh	One Sec
Approach	Hard blocking	Friction/delay
macOS support	Yes, native	Yes, limited
iOS support	No	Yes, primary platform
Website blocking	Yes, all browsers	No
App blocking	Yes, during sessions	Friction delay, not blocking
Focus timer	Yes, built-in	No
Task management	Yes, kanban board	No
Google Calendar sync	Yes	No
Breathing exercises	No	Yes
Usage analytics	No	Yes
Always-on protection	No (session-based)	Yes, whenever configured
Price	Free	Free (1 app) / ~$4.99/mo Premium

Does One Sec work well on Mac?

One Sec was designed for iPhone first, and it shows. The iOS version integrates deeply with iOS Shortcuts to intercept app launches seamlessly. The Mac version exists but has more limited functionality — intercepting app launches on macOS is technically harder than on iOS.

Focuh is built specifically for macOS. It uses Accessibility APIs to block sites and apps at the system level, which means it works consistently across all browsers and applications. For Mac-focused users, Focuh offers a more reliable desktop experience.

Can One Sec replace a focus timer and task manager?

No. One Sec is designed for one thing: adding friction to app launches. It doesn't include a focus timer, task management, kanban board, or calendar sync. It's a habit-change tool, not a productivity workflow tool.

Focuh gives you the full workflow: plan tasks on a kanban board, start a focus timer, block distractions, and see your calendar alongside your tasks. If you need structure around your work, not just friction around your habits, Focuh addresses a broader set of needs.

When should you choose One Sec over Focuh?

Choose One Sec if:

Your main problem is mindless phone scrolling (iPhone is the primary platform)
You want to reduce app usage throughout the entire day, not just during work
You prefer a gentle, habit-building approach over hard blocking
You want usage analytics showing how often you're reaching for apps
You want breathing exercises as a mindfulness practice

Choose Focuh if:

You need hard blocking during focused work sessions on Mac
You want integrated task management and a focus timer
You want a free solution with no subscription
You have ADHD and need structure beyond friction — timer, tasks, and blocking
You want website blocking in addition to app management

The bottom line

One Sec and Focuh solve different problems with different philosophies. One Sec is a habit-change tool that reduces your overall screen time by making you pause before opening apps. It's excellent on iPhone and helps with the mindless scrolling that consumes hours each day.

Focuh is a focus session tool that blocks distractions when you need to do deep work. It includes task management and a timer, making it a complete workflow tool for getting things done on your Mac.

They actually pair well together. One Sec can manage your phone habits all day, while Focuh powers structured focus sessions when you sit down to work on your Mac.