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Genspark AI Browser vs Sigma AI Browser: catalog facts
Genspark AI Browser	Sigma AI Browser
Free Free to download, with free on-device AI models.	Free Described by the developer as a free browser.
Windows, macOS	Windows, macOS, Android, iOS
AI agent and autopilot mode for multi-step web tasks On-device AI models that run without an internet connection	Built-in AI agent that acts on web pages Local Eclipse LLM keeps prompts on the device
macOS version requires macOS 15 or later Closed source	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.