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ZeroTier One vs Radmin VPN: catalog facts
ZeroTier One	Radmin VPN
Freemium The software is free and open source under the MPL 2.0. The hosted controller is free up…	Free Completely free with no ads or paid features.
Windows, macOS, Linux, Android, iOS	Windows
Ethernet-level networking, so discovery and broadcast protocols work across sites End-to-end encryption with keys you control	Free with no ads or paid tiers Connects machines behind firewalls into one LAN
An account with the hosted controller unless you run your own Relayed connections are free but slow when peer-to-peer fails	Windows only Closed source
Downloadable app	Downloadable app
Open source	Closed source
License: MPL-2.0	License not stated
Account needed	Not stated if an account is needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked September 21, 2026	Official website Full listing and sources Checked September 23, 2026

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