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