
Cold Turkey
Freedom.to
Opal.so
Forest App
LeechBlock
clearspace
FocusMe
one sec uses Shortcut automation in order to empower you to spend more time in the real world.

Study Focus Timer
Focus – Productivity Timer
Best Countdown
Go For A
Pomodoro Timer Online
Pomodoro Timer App
Session - Pomodoro Timer
The best free study timer for students. Track hours, manage tasks, maintain streaks, compete with friends. Pomodoro mode, heatmaps, live leaderboards — 100% free.

Which is more popular?
Based on our record, one sec seems to be more popular. It has been mentioned 44 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | one-sec.app | groupstudytimer.com |
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Recommended for
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The app that makes Elon Musk cry — One Sec app setup & review
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Recommendations tracked on public social media and blogs since March 2021.


I think most users need more screen blocking control than they get out of the box on iOS. Ntools like one sec [1] have been invaluable for me. [1]: https://one-sec.app/. - Source: Hacker News / 8 months ago
One thing that finally worked for me was using: https://one-sec.app/ It basically forces you to do a little breathing exercise before you can visit the site that you have on its block list. It has been life changing. It adds enough... - Source: Hacker News / over 1 year ago
I've tried various forms of this. As long as there's a logged in session somewhere, I have to have various tricks and extensions on my browser to manage things. Most have been only varying degrees of successful, often ending up in me... - Source: Hacker News / over 1 year ago
Tracking GroupStudyTimer.com since Mar 2026.
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Smart timers to structure your study sessions and boost focus
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Freedom is a productivity hack that lets you block apps, websites or the entire Internet on iPhones, iPads, Windows and Mac computers.
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The best Focus timer for becoming more productive every day! The Focus app helps you to stay focused and get things done by working with a pomodoro timer.
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Real Focus in Real-Time. Measure and improve your focus day by day, on iPhone, iPad and macOS.
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Free online countdown timer with custom duration or end time.Includes Pomodoro,workout,study,and focus modes.Sound alerts,fullscreen,themes,mobile-friendly
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