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Quick Assist vs Dayon!: catalog facts
Quick Assist	Dayon!
Free Free from Microsoft.	Free Free and open source.
Windows, macOS	Windows, macOS, Linux
Free and made by Microsoft View-only, annotation or full control modes	No network setup needed on the assisted computer Low bandwidth use
Basic feature set compared with commercial remote support tools Commonly abused by tech support scammers, so users must trust the helper	Grayscale image stream is meant for guidance, not full-color work Requires a Java runtime environment
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License not stated
Not stated if an account is needed	Not stated if an account is needed
Needs internet	Not stated if it works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked September 24, 2026

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