
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.

LeetCode
The bug you can't spot today ships tomorrow. Train before the incident: one realistic AI pull request a day, graded against a canonical review. Free, no signup.
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 | diffdojo.com |
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What each product offers, as listed by its team.


Possible disadvantages
Walkthroughs and reviews on video.
The app that makes Elon Musk cry — One Sec app setup & review
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How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using one sec and DiffDojo. For example, how are they different and which one is better?
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 DiffDojo since Sep 2026.
When comparing one sec and DiffDojo, you can also consider the following products.

Cold Turkey is a free productivity program that you can use to temporarily block distractions so that you can get your work done!
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Practice and level up your development skills and prepare for technical interviews.
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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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Real Focus in Real-Time. Measure and improve your focus day by day, on iPhone, iPad and macOS.
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Forest is an app that helps you stay focused on the important things in life.
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LeechBlock is an extension for Firefox and Chrome that allows users to block time-wasting sites.
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