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 messaging platform that emphasizes privacy and decentralization, making it suitable for users seeking anonymity and cross-platform availability. In contrast, FaceTime offers a seamless and high-quality user experience within the Apple ecosystem, focusing on security but limiting its availability to Apple users.