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HopToDesk vs UltraViewer: catalog facts
HopToDesk	UltraViewer
Free Free for personal and commercial use; a dashboard adds management features.	Freemium Free to use, with paid licences available to order.
Windows, macOS, Linux, Android, iOS	Windows
End-to-end encryption for screen, chat and file transfer Free for commercial use without limits	Simple to set up for one-off support sessions Built-in chat and file transfer
Management features live in a separate dashboard Open-source licence is not stated on the homepage	Windows only Closed source
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 23, 2026	Official website Full listing and sources Checked September 24, 2026

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