one sec

C tier on Screen Time Management AppsScore 6.8 · #7 of 36

Android app: Yes
Free plan: Trial only
Paid plans from: $1.67/mo
Runs on: Android, Browser extension, iOS, Linux, Mac, Windows

one-sec.app

Summary

one sec interrupts or blocks apps, social media, and websites to help users manage their time. Its customizable prompts can ask users to breathe, reflect, rotate their phone, or complete a typing exercise before continuing. Scheduled sessions can prevent chosen apps or websites from opening during defined periods. Healthy Alternatives can suggest activities such as journaling, while structured integrations can block distracting apps during unfinished tasks and show upcoming tasks as alternatives. The free version targets one app; Pro supports unlimited apps and adds intentional app switching, time tracking, website blocking, strict sessions, and other intervention types. The free LENGO integration asks users to complete a vocabulary exercise before opening social-media apps. Browser extensions support Chrome, Firefox, Safari, Edge, and other major browsers. One account can be used across iOS and Android devices and browser extensions on Windows, macOS, and Linux. By default, data stays offline and intervention logic runs on the device. The service lists a seven-day trial; Pro costs 6.99 USD per month, the family plan 9.99 USD per month, and family lifetime access 149.00 USD per once.

Who it is for

one sec suits people who want prompts or scheduled blocks to interrupt app and website use. Its cross-device support also suits users who move between iOS or Android devices and desktop browsers.

What is good

Customizable mindful prompts interrupt app use.
Scheduled sessions block selected apps and websites.
Healthy Alternatives can suggest journaling.
Browser extensions support major browsers.
Intervention logic runs locally by default.

What to know first

The free version targets one app.
Unlimited apps require Pro.
Pro costs 6.99 USD per month.
Family lifetime access costs 149.00 USD per once.

Verdict

one sec offers both brief interruptions and scheduled blocking, with alternatives and task integrations to redirect attention. The free version is limited to one app, so users wanting broader coverage need Pro.

one sec plans and pricing

All plans

one sec pro $6.99/mo monthly Unlimited apps · intervention types · time tracking · website blocking · block sessions apps.apple.com · 30 Sept 2026

one sec pro Family Plan $9.99/mo monthly Family sharing apps.apple.com · 30 Sept 2026

one sec pro $19.99/yr annually Unlimited apps · intervention types · time tracking · website blocking · block sessions apps.apple.com · 30 Sept 2026

one sec pro Family Plan $29.99/yr annually Family sharing apps.apple.com · 30 Sept 2026

one sec pro $99.99 once lifetime Unlimited apps · intervention types · time tracking · website blocking · block sessions apps.apple.com · 30 Sept 2026

one sec pro Family Lifetime $149 once lifetime Family sharing apps.apple.com · 30 Sept 2026

Compared on screen time management apps

Free plan: Yesone-sec.app
Block targets: websites and appsone-sec.app
Scheduled blocking: Yesone-sec.app
Recurring schedules: Yesone-sec.app
Locked sessions: Yesone-sec.app
Browser extensions: Yesone-sec.app
Mobile apps: ios and androidone-sec.app

Facts

Purpose: one sec interrupts or blocks social media, apps, and websites to help users regain control of their time.one-sec.app · 30 Sept 2026
Core intervention: The app uses customizable mindful interruptions, including breathing, reflection, phone rotation, and typing exercises.one-sec.app · 30 Sept 2026
Blocking: Users can schedule block sessions so configured apps or websites cannot be opened during defined periods.one-sec.app · 30 Sept 2026
Healthy alternatives: Healthy Alternatives can replace unwanted scrolling with activities such as journaling or other suggested behaviors.one-sec.app · 30 Sept 2026
Free limit: The free version can target one app, while Pro supports unlimited apps.tutorials.one-sec.app · 30 Sept 2026
Pro features: Pro adds intentional app switching, time tracking, website blocking, strict block sessions, and other intervention types.tutorials.one-sec.app · 30 Sept 2026
Integrations: Structured integration blocks distracting apps during unfinished tasks and can show upcoming tasks as healthy alternatives.one-sec.app · 30 Sept 2026
LENGO integration: The free LENGO integration requires a vocabulary exercise before social-media apps can be opened.one-sec.app · 30 Sept 2026
Browser support: The browser extension works with Chrome, Firefox, Safari, Edge, and other major browsers.one-sec.app · 30 Sept 2026
Cross-device: The same account can be used simultaneously on iOS and Android devices plus browser extensions on Windows, macOS, and Linux.one-sec.app · 30 Sept 2026
Privacy: By default, user data remains offline; data is processed only when users choose features such as support contact, subscriptions, feedback, or iCloud sync.one-sec.app · 30 Sept 2026
Data practices: one sec says it does not sell or analyze user data, and intervention logic runs locally on the device.one-sec.app · 30 Sept 2026
Support: Support is provided through help articles, tutorials, an ideas and bug-feedback board, and direct contact.one-sec.app · 30 Sept 2026
Audience: The product is offered for individuals, companies, and schools, with team licenses available from 83ct per user per month billed annually.one-sec.app · 30 Sept 2026
Research result: The homepage reports an average 57% reduction in app openings and about two additional hours of sleep per week.one-sec.app · 30 Sept 2026