Tox is a peer-to-peer instant-messaging and video-calling protocol that offers end-to-end encryption. Developed by Project Tox
License: Open Source
Tox is an open-source, decentralized communication tool emphasizing privacy and security, while Skype, developed by Microsoft, offers a more user-friendly experience with robust features but raises privacy concerns. Tox is ideal for tech-savvy users prioritizing privacy, whereas Skype is suitable for users seeking an integrated communication solution with a large network.