Comparison
Tunnelblick is a free, open-source OpenVPN client for macOS. Shimo is a paid client that connects to OpenVPN and nearly every other VPN type, with automation, accounting and support built in.
Choose Shimo if you connect to more than OpenVPN, want setup without configuration files, and need connections to start on their own. Tunnelblick is the stronger pick if you only use OpenVPN and want free, open-source software.
WireGuard, IPsec, SSH and corporate SSL VPNs such as Cisco AnyConnect, Fortinet and GlobalProtect sit next to your OpenVPN profiles, all controlled from the menu bar.
Shimo’s two-step wizard creates accounts from a form or an imported file. Passwords, PINs and certificates are stored in the macOS Keychain.
Triggers connect accounts by Wi-Fi network, location or running apps. Every session is logged and exports to CSV, and the Shimo team answers your support requests.
Tunnelblick is free. Shimo is a one-time purchase per user, on all of your Macs, with support and security updates included.
A Shimo license is valid for the current Shimo version. Tunnelblick is free and open source under the GPL.
Tunnelblick is an OpenVPN client. Shimo connects to OpenVPN and eleven more VPN types from the same menu bar app.
Licensing
Connections & automation
Security
Accounting & deployment
Platforms
Tunnelblick details are taken from tunnelblick.net as of October 2026 and may have changed since. OpenVPN is a registered trademark of OpenVPN Inc.
Choose Shimo if you
Choose Tunnelblick if you
Moving your connections takes a few minutes, and you can run both apps side by side during the trial.
If you only use OpenVPN, Tunnelblick does the job. Shimo is for people who also need WireGuard, IPsec, SSH or corporate SSL VPNs, along with automation, connection history and direct support.
No. A Shimo license is a one-time payment, valid for the current Shimo version, with no subscription and no commitment.
Yes. Shimo imports existing OpenVPN configuration files, so your current servers work without changes.
No. Licenses are per user, so you can use Shimo on every Mac you own, as long as you are the only one using it.
Shimo supports WireGuard, OpenVPN, IPsec, Cisco AnyConnect, Fortinet, Palo Alto GlobalProtect, Pulse Secure / Ivanti, Juniper, F5 BIG-IP, Array Networks and SSH. Try it with your gateway during the free trial.
Yes. Email info@shimovpn.com with your requirements and we will send you a quotation.
No feature restrictions during the trial. If you keep it, you pay once.