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Tunnelblick vs Shimo: catalog facts
Tunnelblick	Shimo
Free Free and open source under the GPL version 2.	Paid Paid licence with a free trial; Shimo 6 was offered for 29 euros in September.
macOS	macOS
Bundles OpenVPN and drivers, no extra installs No ads, tracking or logging	Supports WireGuard, OpenVPN, IPsec, AnyConnect, Fortinet and SSH in one app Concurrent and automated connections
macOS only OpenVPN only; you need a VPN server to connect to	macOS only, version 13 or newer Not a VPN service itself; you need your own servers or provider
Downloadable app	Downloadable app
Open source	Closed source
License: GPL-2.0	License not stated
No account 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 23, 2026	Official website Full listing and sources Checked October 2, 2026

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