GNUnet is a free software framework for decentralized, peer-to-peer networking and an official GNU package. Developed by Christian Grothoff
License: Open Source
PureVPN is a commercial VPN service focused on providing secure internet access, while GNUnet is a decentralized networking framework that emphasizes privacy and censorship resistance. PureVPN is user-friendly and suitable for general users, whereas GNUnet caters to users seeking advanced privacy features and decentralized functionality.