one sec | app blocker, focus2.9.5 - Google Play

Take a deep breath and stop scrolling! one sec is the screen time limit app with science behind it: 57% fewer app openings on average, confirmed in a peer-reviewed study in collaboration with Max-Planck-Institute.

Most social media use happens on autopilot. one sec interrupts it right at the root by breaking the dopamine loop behind every mindless scroll. This is effective in two ways:
1. Unconscious app openings are prevented right away (“Why did I even want to open that app?”).
2. Long-term habits change because your brain gets rewired: apps appear less appealing.

🔒 Privacy by design: one sec does not sell or analyze your data.

🛠️ FEATURES
- Breathing pause: take a deep breath before distracting apps open
- App blocker: block Instagram, TikTok, or any other app instantly or on a schedule
- App time limit: block apps and websites after a set amount of time
- YouTube Shorts blocker & Instagram Reels blocker: remove in-app features while keeping the rest of the app
- Focus times: schedule phone-free hours during work, study, family time or bedtime
- Porn blocker: block porn sites and lock the setting so you can't switch it off on a whim
- Screen time stats: track how often you reach for an app and how much time you’ve saved
- Desktop Browser extension: set up one sec on your desktop web browser to block websites
- …and more!

📊 WHAT RESEARCH SHOWS
- 57% fewer app openings on average, in a study with the Max Planck Institute for Human Development and Heidelberg University (published in PNAS)
- 36% less social media use among teens, in a field experiment by the Danish Competition and Consumer Authority
- Friction-based apps like one sec have the strongest evidence of all screen time tools, according to a University of Cambridge report.
- one sec is part of research projects with 30+ universities and federal institutions, like the University of Cambridge, LMU Munich and the German Federal Agency for Child and Youth Protection.
- one sec users save more than 3,000 years of scrolling every week.

Read the PNAS study: https://www.pnas.org/doi/10.1073/pnas.2213114120
Read the Cambridge report: https://theprudencetrust.org/wp-content/uploads/2026/04/Smartphone-and-Social-Media-Interventions.pdf

💪 WHERE ONE SEC HELPS YOU
Reduce your screen time and stop doomscrolling – you benefit in various ways:

🤳 Balanced social media use
App usage drops by 57% on average thanks to one sec – proven by science!

🧑‍💻 Productivity
Get two weeks a year back from 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 physical 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
Stop scrolling mindlessly before you go to bed and right after waking up.

🔒 PRIVACY
This app uses the Accessibility Service API to detect and interrupt user-selected target apps. We do not collect personal information. All data remains offline and on-device.

⭐ FREE & PRO
Try one sec for free with one app. Upgrade to Pro for unlimited apps, additional features, and all customization options.

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/