Compare software

SelfControl vs StayFocusd: catalog facts
SelfControl	StayFocusd
Free Free and open source, supported by donations.	Free The site describes it as always free.
macOS	Browser extension
Block cannot be undone until the timer expires Survives restarts and deleting the app	Daily time limits as well as outright blocking Nuclear Option for a full block over a set period
macOS only No way to end a block early if you set it wrongly	Built for Chromium browsers such as Chrome and Edge The website uses advertising and analytics cookies
Downloadable app	Browser extension
Open source	Closed source
License not stated	License not stated
No account needed	Not stated if an account is needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked September 23, 2026

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