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VPN Tracker 365 vs Viscosity: catalog facts
VPN Tracker 365	Viscosity
Paid Paid subscription with a free trial.	Paid One-time purchase of $16 after a 30-day free trial, no subscription.
macOS, iOS	Windows, macOS
Supports more than ten VPN protocols Works with over 300 gateway models	Native interface on both macOS and Windows Fine-grained DNS and routing control
Apple platforms only Subscription required after the trial	Paid after the trial OpenVPN only, no WireGuard
Downloadable app	Downloadable app
Closed source	Closed source
License not stated	License not stated
Not stated if an account is needed	No account needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked September 23, 2026

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