one sec | app blocker, focus
9.3 3K+
v2.6.4 by riedel.wtf
About one sec
one sec (Package Name: wtf.riedel.onesec) is developed by riedel.wtf and the latest version of one sec | app blocker, focus 2.6.4 was updated on March 21, 2026. one sec | app blocker, focus is in the category of Productivity. You can check all apps from the developer of one sec | app blocker, focus. Currently this app is for free. This app can be downloaded on Android 10.0+ on APKFab or Google Play. All APK/XAPK files on APKFab.com are original and 100% safe with fast download.
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.
Privacy policy: https://one-sec.app/privacy/
Imprint: https://one-sec.app/imprint/
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.
Privacy policy: https://one-sec.app/privacy/
Imprint: https://one-sec.app/imprint/
one sec 2.6.4 Update
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.
Read More
one sec Features
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Previous Versions
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Variant
Arch
Version
DPI
20604
March 21, 2026
one sec | app blocker, focus
2.6.4
(20604)
Requires Android: Android 10.0+
Architecture: arm64-v8a
Screen DPI: 160-640dpi
SHA1: f1d3ceedddc4689291d5885d2c9284f73cd3f778
Base APK: wtf.riedel.onesec.apk
Split APKs: config.arm64_v8a, config.en, config.mdpi
Size: 70.98 MB
What's New:
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.
arm64-v8a
Android 10.0+
160-640dpi
20604
March 21, 2026
one sec | app blocker, focus
2.6.4
(20604)
Requires Android: Android 10.0+
Architecture: armeabi-v7a
Screen DPI: 160-640dpi
SHA1: 65485df63c86fe63f5a2fdd87b6124fc5a2418f4
Base APK: wtf.riedel.onesec.apk
Split APKs: config.ar, config.armeabi_v7a, config.de, config.en, config.es, config.fr, config.hdpi, config.hi, config.in, config.it, config.ja, config.ko, config.my, config.pt, config.ru, config.th, config.tr, config.vi, config.zh
Size: 71.57 MB
What's New:
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.
armeabi-v7a
Android 10.0+
160-640dpi
Variant
Arch
Version
DPI
20514
January 4, 2026
one sec | app blocker, focus
2.5.14
(20514)
Requires Android: Android 10.0+
Architecture: arm64-v8a
Screen DPI: 160-640dpi
SHA1: a8f4423e9f90558cda8a6e7433ee6bddbeca5178
Base APK: wtf.riedel.onesec.apk
Split APKs: config.ar, config.arm64_v8a, config.en, config.es, config.ja, config.pt, config.ru, config.xhdpi, config.xxhdpi
Size: 23.66 MB
What's New:
- 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!
- 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!
arm64-v8a
Android 10.0+
160-640dpi
20514
January 4, 2026
one sec | app blocker, focus
2.5.14
(20514)
Requires Android: Android 10.0+
Architecture: armeabi-v7a
Screen DPI: 160-640dpi
SHA1: 422c135670b4e78c9f345f932aa27d31de2832d7
Base APK: wtf.riedel.onesec.apk
Split APKs: config.ar, config.armeabi_v7a, config.de, config.en, config.es, config.fr, config.hdpi, config.hi, config.in, config.it, config.ja, config.ko, config.my, config.pt, config.ru, config.th, config.tr, config.vi, config.zh
Size: 69.39 MB
What's New:
- 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!
- 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!
armeabi-v7a
Android 10.0+
160-640dpi
Requires Android: Android 10.0+
Architecture: arm64-v8a
Screen DPI: 160-640dpi
SHA1: 7028a0008365fffcc6c73c8bd110355f64531b9d
Size: 69.66 MB
What's New:
Improve onboarding experience for Xiaomi devices. We’re sorry about any crashes that previously occurred and hope that one sec now works for you as well! <3
Variant
Arch
Version
DPI
20504
November 20, 2025
one sec | app blocker, focus
2.5.4
(20504)
Requires Android: Android 10.0+
Architecture: arm64-v8a
Screen DPI: 160-640dpi
SHA1: d51cd52491f3569394aad81121109da7eb69646b
Base APK: wtf.riedel.onesec.apk
Split APKs: config.arm64_v8a, config.en, config.mdpi
Size: 68.72 MB
What's New:
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 🫶
If you would like to support us, and the further development of one secs, please consider writing a review on the Play Store 🫶
arm64-v8a
Android 10.0+
160-640dpi
20504
January 2, 2026
one sec | app blocker, focus
2.5.4
(20504)
Requires Android: Android 10.0+
Architecture: armeabi-v7a
Screen DPI: 160-640dpi
SHA1: e49076de68b3a7f9bc22c48ffdd6dfb0966cb182
Base APK: wtf.riedel.onesec.apk
Split APKs: config.ar, config.armeabi_v7a, config.de, config.en, config.es, config.fr, config.hdpi, config.hi, config.in, config.it, config.ja, config.ko, config.my, config.pt, config.ru, config.th, config.tr, config.vi, config.zh
Size: 69.29 MB
What's New:
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 🫶
If you would like to support us, and the further development of one secs, please consider writing a review on the Play Store 🫶
armeabi-v7a
Android 10.0+
160-640dpi
More Information
Package Name:
Category:
Update Date:
2026-03-21
Latest Version:
2.6.4
Need Update:
Available on:
Requirements:
Android 10.0+
Report:
Safe to Download
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