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  • one sec | screen time + focus screenshot 1
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About one sec | screen time + focus

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/

Ratings & reviews

4.8

23.6K ratings

5 ★ 91% 4 ★ 5% 3 ★ 2% 2 ★ 1% 1 ★ 2%

What’s new

Version 6.0.1 · Updated September 20, 2026

Here’s the most impactful update we’ve ever shipped for one sec: With one sec 6.0 and the new big iOS update you no longer have to set up Shortcuts automations manually! Simply tap on “Add Intervention” to automatically import the automation. This makes one sec’s setup a one-step process, instead of a technical 10-step process. And this was by far the biggest complaint we’ve heard over the years for you, our users. Besides that, with this update one sec becomes better in every aspect: - Big accessibility improvements (especially voice over) - Bug fixes and performance improvements - Liquid Glass design improvements I’m really proud that we’re able to ship such a significant improvement for one sec alongside the big iOS update. And I’m especially grateful that I got to work on this amazing update with the best team I could dream of! Hope you’ll enjoy this update as much as we did working on it this summer :) – Frederik

App privacy

The developer, riedel.wtf apps S.L., reported these privacy practices to Apple.

Data Not Linked to You

The following data, which may be collected but is not linked to your identity, may be used for the following purposes:

  • Usage Data: Product Interaction

Used for: Analytics

Alternatives to one sec | screen time + focus

Looking for apps like one sec | screen time + focus? Here are 6 similar apps on the App Store. The highest rated is ScreenZen- Screen Time Control (4.9/5), and all 6 are free to download.

one sec | screen time + focus vs. alternatives
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one sec | screen time + focus 4.8 / 5 (23,618 ratings) Free September 20, 2026
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Freedom: Screen Time Control 4.4 / 5 (5,913) Free Sep 22, 2026
Opal: Screen Time Control 4.7 / 5 (88,612) Free Sep 26, 2026
Jomo - Screen Time Blocker 4.8 / 5 (2,430) Free Sep 25, 2026