About one sec | app blocker, focus
one sec forces you to take a deep breath whenever you open distracting apps. It’s as simple as effective: You will reduce your social media usage just by becoming aware of it. one sec is the focus app that tackles the...
one sec forces you to take a deep breath whenever you open distracting apps.
It’s as simple as effective: You will reduce your social media usage just by becoming aware of it. one sec is the focus app that tackles the problem of unconscious social media use at its root. It is designed to change your habits on a long-term basis.
one sec works so great because it is fully automated – and forces you to reflect on your actions – while they happen.
🤳 Balanced social media use
App usage drops by 57% on average thanks to one sec – proven by science!
🧑💻 Productivity
Having two more weeks per year not spent on social media – to work on your projects & to recharge!
🙏 Mental health
High social media usage is often related to depression and anxiety symptoms.
⚡️ ADHD relief
Users praise one sec as the “holy grail for ADHD relief”.
🏃 Sports
Studies have shown that reduced social media use leads to increased sport activity.
🚭 Quit smoking
Studies have shown that reduced social media use leads to reduced smoking behavior.
💰 Save money
Prevent impulse purchases with one sec.
🛌 Sleep better
Prevent scrolling mindlessly before you go to bed and right after waking up.
With one sec, you‘ll notice both a short-term and long-term effect on your social media usage:
1. Unconscious phone habits are prevented right away (“Why did I even want to open that app?”) and
2. Long-term habits change because these apps appear less appealing to your brain (their “dopamine on demand” effect fades away).
one sec is also available for your desktop web browser: https://tutorials.one-sec.app/browser-extension-installation
We have made one sec free to use with one app!
If you would like to use one sec with multiple apps, please upgrade to one sec pro. You’ll also get access to lots of additional features and customization options.
This effect has been confirmed in a study with the University of Heidelberg and Max Planck Institute where we detected a reduction of social media usage by 57% thanks to one sec. Read our peer-reviewed paper: https://www.pnas.org/doi/10.1073/pnas.2213114120
Accessibility Service API
This app uses the Accessibility Service API to detect and intervene user-selected target apps. We do not collect personal information, all data remains offline and on-device.
one sec is covered by U.S. Patent 12,468,828 B2.
Privacy policy: https://one-sec.app/privacy/
Imprint: https://one-sec.app/imprint/
Previous Versions
Here you can find the changelog of one sec | app blocker, focus since it was posted on our website on 2023-04-05 20:48:28.
The latest version is 2.7.0 and it was updated on 2026-06-30 13:59:58. See below the changes in each version.
one sec | app blocker, focus version 2.7.0
Updated At: 2026-06-10
Changes: New: Adult Content Detox — completely block adult websites to reduce impulsive visits.
one sec | app blocker, focus version 2.6.17
Updated At: 2026-05-20
Changes: Smaller bug fixes and improvements.
one sec | app blocker, focus version 2.6.14
Updated At: 2026-05-06
Changes: Bug fixes and stability improvements
one sec | app blocker, focus version 2.6.7
Updated At: 2026-04-26
Changes: - Resolves an issue where Re-Intervention was occasionally triggered at the wrong time
one sec | app blocker, focus version 2.5.14
Updated At: 2026-03-08
Changes: - Improved permission related onboarding experience for Xiaomi devices.
- Addressed an issue where some keyboards could trigger one sec’s interruption to appear incorrectly (during the use of target apps). Sorry about the trouble, now one sec should work smoothly again!
one sec | app blocker, focus version 2.6.4
Updated At: 2026-03-08
Changes: This big update adds a new Block tab to one sec. You can now start a block session that strictly blocks distracting apps — so you can't access them, even with a breathing exercise.
one sec | app blocker, focus version 2.5.4
Updated At: 2025-12-21
Changes: In this update we’ve redesigned one sec’s Home Screen. This is just the beginning of a ton of new features and improvements we’ll ship over the next months. We hope you like it!
If you would like to support us, and the further development of one secs, please consider writing a review on the Play Store 🫶
one sec | app blocker, focus version 2.4.10
Updated At: 2025-09-18
Changes: - Redesigned onboarding flow
- Resolved an issue where interventions were falsely triggered
- Add support for French, Italian, Dutch, Japanese, Korean and Chinese
one sec | app blocker, focus version 2.4.4
Updated At: 2025-08-20
Changes: - Resolved an issue where breathing animation is not showing on some devices
one sec | app blocker, focus version 2.3.8
Updated At: 2025-05-11
Changes: Bug fixes and improvements.
Disclaimer
Official Google Play Link
We do not host one sec | app blocker, focus on our servers. We did not scan it for viruses, adware, spyware or other type of malware. This app is hosted by Google and passed their terms and conditions to be listed there. We recommend caution when installing it.
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