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RescueTime vs LeechBlock NG: catalog facts
RescueTime	LeechBlock NG
Freemium Paid plans with a free 14-day trial; Timesheets can be bundled with Focus.	Free Free to install and use.
Web, Browser extension	Browser extension
Passive tracking of apps and websites with no manual timers Goals, alerts and website blocking for focus sessions	Up to 30 block sets, each with its own schedule Blocks by fixed time period, time allowance or both
Proprietary hosted service that needs an account Full features require a paid plan after the trial	Browser extension only, so blocks apply inside supported browsers and not to other apps No Safari version; the site points macOS and iOS users to the separate ivBlock app
Downloadable app, Hosted service, Browser extension	Browser extension
Closed source	Closed source
License not stated	License not stated
Account needed	No account 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.