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Cốc Cốc vs Quetta Browser: catalog facts
Cốc Cốc	Quetta Browser
Free Free to download; the company earns money from advertising and search.	Free Free to download; the research does not mention paid tiers.
Windows, macOS, Android, iOS	Android, iOS, Browser extension
Built-in ad blocking and video downloading Vietnamese language tools and translation	Built-in downloader for MP4, WebM and HLS streams Ad and tracker blocking included
Interface and support mainly in Vietnamese Proprietary, with a business built on advertising	Extension support is limited to Android Downloads work only for supported media formats
Downloadable app	Downloadable app, Browser extension
Closed source	Closed source
License not stated	License not stated
No account 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 24, 2026	Official website Full listing and sources Checked October 2, 2026

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