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Puma Browser vs Sigma AI Browser: catalog facts
Puma Browser	Sigma AI Browser
Free Free on the App Store.	Free Described by the developer as a free browser.
iOS	Windows, macOS, Android, iOS
Local AI chat that works offline Optional cloud models for page summaries	Built-in AI agent that acts on web pages Local Eclipse LLM keeps prompts on the device
Large download of about 900 MB iOS only in this listing	Cloud AI features send data off the device Developer and licensing details are not clearly stated
Downloadable app	Downloadable app
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 2, 2026	Official website Full listing and sources Checked October 2, 2026

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