Ring (SFLphone) is an open-source SIP-compatible softphone and instant messenger for Linux, Microsoft Windows, OS X and Android. Developed by Savoir-faire Linux
License: Open Source
Ring offers a decentralized messaging platform with a strong emphasis on privacy and security, while Off-the-Record Messaging focuses on providing anonymous communication with no metadata retention. Both prioritize user privacy, but Ring includes features like self-destructing messages and group messaging capabilities.