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Nightingale vs Kreya: catalog facts
Nightingale	Kreya
Free Available from the Microsoft Store and GitHub releases.	Freemium A free tier is available. Advanced features require a paid licence.
Windows	Windows, macOS, Linux
Native Windows app that is light on resources Variables and environments	One of the few desktop clients with proper gRPC and server reflection support Projects are Git-friendly local files rather than cloud documents
Windows only Smaller feature set than larger API platforms	Some features require a paid licence Smaller community than the mainstream API clients
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 1, 2026	Official website Full listing and sources Checked September 22, 2026

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