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Last updated on: 2026-06-22
App Store Apps > Productivity > one sec | screen time + focus
one sec | screen time + focus icon

one sec | screen time + focus

5.2.6
riedel.wtf apps S.L.
4.83
23,024 reviews
Free

Download from the App Store

About one sec | screen time + focus

one sec | screen time + focus is an overall app developed by riedel.wtf apps S.L..

Download Statistics

User Ratings

one sec | screen time + focus is rated 4.83 out of 5 stars. The rating is based on 23 thousand ratings.

App Information

one sec | screen time + focus is FREE to download. The APK download size is 263.01 MB. The latest version available is 5.2.6. The last update was on June 2, 2026.

Technical Requirements

The app has a content rating of Everyone. The app has been available on Google Play September 2020.

Description
Willpower is not enough against social media algorithms!

That’s why I made one sec:

one sec adds friction to distracting apps to make them less appealing…long-term!

This principle works really well: we have gained scientific evidence in numerous research studies with the Max-Planck Institute, with the German and Danish government, and in dozens more scientific collaborations:

one sec has incredible effects on your screen time: app usage drops by 57% on average!

…just read our App Store reviews or try it for yourself if you don’t believe me (…you should really try it)!


How is one sec different from Screen Time limits or app blockers?
- one sec DELAYS access to distracting apps instead of blocking apps completely – that’s an important difference psychologically.
- This way, we solve the screen time problem at its roots: long-term & sustainably!
- one sec is always on, and makes using social media just slightly more annoying…so you’ll end up using it only when you actually have a reason!


Which apps can I use with one sec?
- You can set up one sec with any app you’d like to use less / more intentional.
- Most popular use-cases are: social media, games, video streaming, dating, stock/coin trading, adult content.
- Using one sec with one app of your choice if completely free, for more you’ll need to purchase one sec pro (we also need to finance development of our app!).


What if I get stuck scrolling?
- No worries, one sec offers a Doom Scroll Emergency Brake: We call it Re-Intervention.
- After a set time (e.g. 5 minutes) you’ll be kicked out of social media, and you’ll have to go through an intervention again to unlock more time.


Where can I learn more about the scientific background of one sec?
→ https://one-sec.app/research


Can I use one sec to interrupt access to websites as well?
→ Yes, one sec offers a free Safari extension as well.


How does one sec work technically?
- one sec uses Shortcuts Automation to toggle a deep breath animation whenever you open one of the configured apps (Instagram, Twitter, YouTube…).
- This breaks unconscious social media habits short-term (literally, as soon as you have set it up) and even helps long-term by adding more friction when opening these apps.


Integrations:
- Structured: one sec blocks apps during unfinished tasks.
- LENGO: learn vocabulary to unlock social media.


I developed one sec for myself in 2020…and it worked so well I decided to upload it to the App Store.

Especially for people with ADHD one sec is a great tool to gain back control for incredible focus and concentration.

– Frederik




Legal information:

Available Subscription Options:
one sec pro (annual / monthly / lifetime unlock)

one sec can contribute mindful moments to the Health App via HealthKit.

one sec is covered by U.S. Patent 12,468,828 B2.

Terms (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://one-sec.app/privacy/
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More data about one sec | screen time + focus

Price Free to download
Rating 4.83 based on 23 thousand ratings
Ranking Highly ranked
Version 5.2.6
App download size 263.0 MB
Suitable for Everyone

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Changelog of one sec | screen time + focus

No changelog data

Developer information for riedel.wtf apps S.L.

riedel.wtf apps S.L.

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App Store Rankings for one sec | screen time + focus

Top rankings

Rank Country Category List
83 Germany Productivity Top Free
89 Germany Productivity Top Grossing
89 Finland Productivity Top Grossing
90 Switzerland Productivity Top Grossing
92 Denmark Productivity Top Grossing
94 Austria Productivity Top Free
95 Netherlands Productivity Top Grossing
99 Sweden Productivity Top Grossing

Ranking history in Germany

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Technologies used by one sec | screen time + focus

Opal: Screen Time Control icon Opal: Screen Time Control
ScreenZen- Screen Time Control icon ScreenZen- Screen Time Control
Freedom: Screen Time Control icon Freedom: Screen Time Control
Forest: Focus for Productivity icon Forest: Focus for Productivity
Focus Keeper - Pomodoro Timer icon Focus Keeper - Pomodoro Timer
Flipd: focus & study timer icon Flipd: focus & study timer
Tiimo: To Do List & AI Planner icon Tiimo: To Do List & AI Planner
Routine Planner, Habit Tracker icon Routine Planner, Habit Tracker

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