Suggestions appear as you type. Use the up and down arrows to choose one and Enter to open it.

This page's audience our own tag's counts — open to see them
–Visits
–Page views
–Clicks to vendors
–Time on page
–Reading now
Clicks to vendors, by tool
  • –
Top countries
  • –
Devices
  • –

– · visits, page views and clicks counted by our own tag, which counts more than our checked analytics; every figure rounded down · how we count

Head-to-head · Distraction Blocking Software

one sec vs ScreenZen

  • Updated Oct 2026
  • Both researched from official sources
  • 5 checks side by side
Higher score one sec #3 in Distraction Blocking Software 9.2/10 Free plan · 7-day trial Free planFree trial✓ 4 of 4 features Visit one sec
ScreenZen #6 in Distraction Blocking Software 8.8/10 Free plan Free plan✓ 3 of 4 features Visit ScreenZen

one sec leads on 0 checks, ScreenZen on 0, and 5 are even. Who comes out ahead on the 5 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreone sec · 9.2/10
  • Free planboth
  • Free trialonly one sec
  • Most featuresone sec · 4 of 4

one sec scores higher on our rubric for distraction blocking software: 9.2 against 8.8 out of 10; our editors rank them #3 and #6.

one sec is the better fit for cross-platform users wanting interventions and blocking. ScreenZen is the better fit for users wanting a capable free blocker.

  • one sec fits best

    Cross-platform users wanting interventions and blocking

  • ScreenZen fits best

    Users wanting a capable free blocker

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Side by side

Feature one sec 9.2/10 Visit ↗ ScreenZen 8.8/10 Visit ↗
At a glance
Editor score 9.2 8.8
Ranking #3 in Distraction Blocking Software #6 in Distraction Blocking Software
Best for Cross-platform users wanting interventions and blocking Users wanting a capable free blocker
Pricing model Free plan + paid Free
Starting price — Free
Free plan ✓ ✓
Free trial 7 days —
Deployment Desktop, Mobile, Browser extension Desktop, Mobile
Platforms Windows, macOS, Linux, iOS, Android, Chrome extension Windows, macOS, iOS, Android
Support Docs Email, Community
Built for Solo, Small business Solo, Small business, Mid-market
Features one sec 4/4 · ScreenZen 3/4
Scheduled blocking ✓ ✓
Recurring schedules ✓ ✓
Locked sessions ✓ ✓
Browser extensions ✓ (best) Not checked yet
Specs
Block targets Websites and apps Websites and apps
Mobile apps Ios and android Ios and android
Devices included Not checked yet Not checked yet
Our review
Pros
  • Blocks apps and websites across desktop, mobile, and browser extensions
  • Supports recurring schedules, scheduled blocks, and strict sessions
  • Adds interventions, time tracking, adult-content filtering, and two integrations
  • Free plan covers app and website blocking with no subscription required
  • Combines schedules, daily limits, delays, lock mode, and usage tracking
  • Available on Windows, macOS, iOS, and Android
Cons
  • Strict sessions limit the ability to pause or leave early
  • Pricing varies by region across published listings
  • The listed integrations are limited to Structured and Lengo
  • Browser-extension coverage is a limitation
  • Optional Halo hardware is separate from the core software
  • No AI features
Our verdict

one sec is a distraction-blocking and screen-time app for people who want more intentional technology use. It places configurable interventions before selected apps or websites open, and it can block chosen targets during active or…

Read the review →

ScreenZen is a free digital-wellbeing app for people who want to reduce mindless scrolling, improve focus, or create phone-free periods. It blocks selected apps and websites, supports scheduled blocking periods and daily usage limits, and…

Read the review →
  1. one secDistraction Blocking Software 9.2Free plan · 7-day trial
  2. ScreenZenDistraction Blocking Software 8.8Free plan

Strengths and trade-offs

  • one sec — where it wins

    • Blocks apps and websites across desktop, mobile, and browser extensions
    • Supports recurring schedules, scheduled blocks, and strict sessions
    • Adds interventions, time tracking, adult-content filtering, and two integrations

    Where it doesn't

    • Strict sessions limit the ability to pause or leave early
    • Pricing varies by region across published listings
    • The listed integrations are limited to Structured and Lengo

  • ScreenZen — where it wins

    • Free plan covers app and website blocking with no subscription required
    • Combines schedules, daily limits, delays, lock mode, and usage tracking
    • Available on Windows, macOS, iOS, and Android

    Where it doesn't

    • Browser-extension coverage is a limitation
    • Optional Halo hardware is separate from the core software
    • No AI features
  • one sec9.2/10 · Free plan · 7-day trial

    A cross-platform blocker with configurable interventions, schedules, strict sessions, and tracking.

    Visit one secFull verdict →
  • ScreenZen8.8/10 · Free plan

    A capable free blocker for apps, websites, schedules, limits, and mindful delays.

    Visit ScreenZenFull verdict →

More comparisons

All distraction blocking software comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update