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 a decentralized, privacy-focused messaging app that emphasizes security with end-to-end encryption, while Yahoo! Messenger was a popular instant messaging service that offered user-friendly features but has since been discontinued. Tox is ideal for users prioritizing privacy, while Yahoo! Messenger catered to those seeking integrated services with a familiar interface.