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BlockSite vs Cold Turkey Blocker: catalog facts
BlockSite	Cold Turkey Blocker
Freemium Free to start; BlockSite Premium is a paid subscription with a 30-day guarantee.	Freemium Free website blocker, with a paid upgrade for more features.
Android, iOS, Browser extension	Windows, macOS
Blocks both websites and apps Focus Mode for timed work sessions	Blocks desktop apps as well as websites Locked blocks that are hard to bypass
Some features require a paid Premium subscription Closed-source commercial product	Desktop only, no phone apps Some features require the paid version
Downloadable app, Browser extension	Downloadable app
Closed source	Closed source
License not stated	License not stated
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 23, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.