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RealVNC Connect vs TightVNC: catalog facts
RealVNC Connect	TightVNC
Freemium Free Lite plan for one non-commercial user, paid plans for more devices and connections.	Free Free and open source under the GPL. A commercial licence is sold for redistribution.
Windows, macOS, Linux, Android, iOS	Windows, Linux
Cloud connectivity avoids manual router or firewall configuration for remote access Free Lite plan available for personal, non-commercial use	Very light on resources, with a Java viewer that runs from any browser host Simple, dependable remote control on a local network
Free plan is capped at three devices and a single simultaneous connection Commercial use requires a paid subscription	No relay service; you must reach the machine yourself over the network VNC authentication is weak and needs to be tunnelled over SSH or a VPN
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License: GPL-2.0
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 September 22, 2026	Official website Full listing and sources Checked September 22, 2026

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