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Tabliss vs Momentum: catalog facts
Tabliss	Momentum
Free Free and open source under the GPL.	Freemium A free version is available. Momentum Plus is a paid subscription.
Browser extension	Browser extension
No account, no tracking; settings stay in the browser Widget set covers backgrounds, clock, search, todos and links	A single stated focus per day is a genuinely effective nudge Pleasant, calm replacement for a grid of most-visited sites
No sync between devices, since nothing is stored remotely Fewer integrations than commercial new tab pages	Integrations, custom backgrounds and metrics need the paid Plus plan Requires an account for sync, and it is closed source
Browser extension	Browser extension
Open source	Closed source
License: GPL-3.0	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 22, 2026	Official website Full listing and sources Checked September 22, 2026

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