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Fello AI vs FlowDown: catalog facts
Fello AI	FlowDown
Freemium Free to start, with paid access for more use.	Free Available on the App Store; cloud models need your own API keys.
macOS, iOS	macOS, iOS
Many AI models from one subscription Floating chat bar that works over any Mac app	Works with any OpenAI-compatible API or local models Native Swift app rather than a web wrapper
Apple platforms only Closed source and dependent on third-party model providers	Apple platforms only Cloud models require bringing your own API key
Downloadable app	Downloadable app
Closed source	Closed source
License not stated	License not stated
Not stated if an account is needed	No account needed
Needs internet	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.