Tor is a free software that helps to hide the identity while browsing sites online. Developed by The Tor Project Inc.
License: Open Source
Calypso and Tor both provide anonymity features, but Calypso focuses more on user-friendliness and flexible routing, while Tor is well-known for its strong encryption and decentralized network. Users looking for a straightforward interface may prefer Calypso, while those who prioritize security and anonymity may lean towards Tor.