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UltraViewer vs HopToDesk: catalog facts
UltraViewer	HopToDesk
Freemium Free to use, with paid licences available to order.	Free Free for personal and commercial use; a dashboard adds management features.
Windows	Windows, macOS, Linux, Android, iOS
Simple to set up for one-off support sessions Built-in chat and file transfer	End-to-end encryption for screen, chat and file transfer Free for commercial use without limits
Windows only Closed source	Management features live in a separate dashboard Open-source licence is not stated on the homepage
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 23, 2026

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