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UC Browser vs Quetta Browser: catalog facts
UC Browser	Quetta Browser
Free Free to download and use.	Free Free to download; the research does not mention paid tiers.
Windows, macOS, Android	Android, iOS, Browser extension
Built-in VPN and ad blocker Video downloading and floating window playback	Built-in downloader for MP4, WebM and HLS streams Ad and tracker blocking included
Closed source Bundled VPN and download features route traffic through the vendor's services	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
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 October 1, 2026	Official website Full listing and sources Checked October 2, 2026

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