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SPECIFICTION
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BlockSite vs one sec

BlockSite

blocksite.co

one sec

one-sec.app

Side by side

FigureBlockSiteone sec
Price from—$1.67/mo
Free plan——
Free trial—Yes
Open source——
WebYes—
Windows—Yes
macOS—Yes
Linux—Yes
iOSYesYes
AndroidYesYes
Plans published16
Spec score · Distraction Blocking Software7.9 (#12)8.2 (#8)
AudienceThe maker describes BlockSite as useful for working, studying, and reducing distractions in daily life.The product is offered for individuals, companies, and schools, with team licenses available from 83ct per user per month billed annually.
BlockingThe site says users can block an unlimited number of sites and apps.Users can schedule block sessions so configured apps or websites cannot be opened during defined periods.
SupportBlockSite provides a Help Center and a Contact Us support form.Support is provided through help articles, tutorials, an ideas and bug-feedback board, and direct contact.

Plans

BlockSite

  • Lifetime Access$39.99, paid once

BlockSite pricing →

one sec

  • one sec pro$6.99 a month
  • one sec pro Family Plan$9.99 a month
  • one sec pro$19.99 a year
  • one sec pro Family Plan$29.99 a year
  • one sec pro$99.99, paid once
  • one sec pro Family Lifetime$149, paid once

one sec pricing →

In their own words

BlockSite

BlockSite has no write-up on Specifiction yet; its figures are above.

Visit blocksite.co

one sec

one sec interrupts or blocks apps, social media, and websites to help users manage their time. Its customizable interventions can prompt breathing, reflection, phone rotation, or typing before a user continues. Scheduled block sessions can prevent selected apps or websites from opening during defined periods, while Healthy Alternatives can suggest activities such as journaling. Structured integrations can block distracting apps while tasks remain unfinished and show upcoming tasks as alternatives. The free version can target one app; Pro supports unlimited apps and adds intentional app switching, time tracking, website blocking, strict sessions, and other intervention types. A free LENGO integration requires a vocabulary exercise before social-media apps open. Browser extensions work with Chrome, Firefox, Safari, Edge, and other major browsers. The same account can be used on iOS and Android alongside browser extensions on Windows, macOS, and Linux. The maker says intervention logic runs locally and user data stays offline by default. A free plan and seven-day trial are listed. Pro costs $6.99 a month, the family plan $9.99 a month, and family lifetime access $149, paid once.

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