Reduce screen time and boost focus with one sec, the app blocker that builds mindful habits and productivity. one sec is a science-backed focus app designed to interrupt unconscious social media use at the exact moment it happens. By introducing a short pause and a deep breath before opening distracting apps, one sec helps create awareness and reflection where habits are formed.
Mindful App Blocking
one sec intervenes automatically whenever selected distracting apps are opened. A brief pause encourages reflection, helping prevent unconscious scrolling and impulsive app usage.
Proven Reduction in Screen Time
Scientific research confirms that app usage drops by an average of 57% with one sec. This effect has been validated in collaboration with the University of Heidelberg and the Max Planck Institute, demonstrating measurable and lasting results.
Improved Productivity
Reduced social media use translates into significant time savings—equivalent to gaining up to two extra weeks per year. This reclaimed time can be redirected toward meaningful work, personal projects, and rest.
Mental Health Support
High levels of social media use are often linked to anxiety and depressive symptoms. By reducing compulsive usage, one sec supports healthier digital habits that contribute to improved mental well-being.
ADHD Relief
Many users describe one sec as a powerful tool for ADHD relief. The enforced pause helps interrupt impulsive behavior and supports better focus and task engagement throughout the day.
Healthier Lifestyle Habits
Studies show that reduced social media use correlates with increased physical activity and reduced smoking behavior. one sec supports these positive changes by limiting habitual distractions.
Better Sleep Quality
Mindless scrolling before bed and immediately after waking up is reduced. By preventing late-night and early-morning social media use, one sec supports healthier sleep routines.
Impulse Spending Prevention
By interrupting automatic app launches, one sec helps reduce impulse purchases triggered by ads or emotional scrolling, contributing to better financial habits.
Short-Term Awareness, Long-Term Change
one sec delivers immediate results by stopping unconscious phone habits and long-term benefits by reducing the dopamine-driven appeal of distracting apps. Over time, these apps become less compelling to the brain.
Multi-Platform Availability
one sec is available on mobile devices and as a desktop browser extension, ensuring consistent focus support across platforms.
Free and Pro Options
The app is free to use with one selected app. Upgrading to one sec Pro unlocks support for multiple apps, along with advanced customization and additional features.
Privacy-First Design
one sec uses the Accessibility Service API only to detect and intervene in user-selected apps. No personal data is collected, and all information remains offline and stored on-device.
FAQs
1. How does one sec reduce social media usage?
one sec introduces a short pause before opening selected apps, increasing awareness and interrupting unconscious habits.
2. Is one sec scientifically proven to work?
Yes, studies conducted with the University of Heidelberg and the Max Planck Institute confirmed an average reduction of 57% in social media usage.
3. Is one sec free to use?
one sec is free with one selected app. A Pro version is available for multiple apps and additional features.
4. Does one sec collect personal data?
No, all data remains offline and on-device. No personal information is collected or shared.
5. Why does one sec use the Accessibility Service API?
The Accessibility Service API allows one sec to detect and intervene in selected apps in real time to enable its core functionality.
Version History
v2.5.4—20 Nov, 2025
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
v2.4.10—21 Sep
- Redesigned onboarding flow
- Resolved an issue where interventions were falsely triggered
- Add support for French, Italian, Dutch, Japanese, Korean and Chinese
v2.4.4—22 Aug, 2025
- Resolved an issue where breathing animation is not showing on some devices
