Off-the-Record Messaging (OTR) is a cryptographic protocol that provides encryption for instant messaging conversations. Developed by Ian Goldberg and the OTR Development Team
License: Open Source
Off-the-Record Messaging focuses on providing strong encryption and message deniability, making it ideal for secure text communication. In contrast, Silence.im offers open-source privacy-focused messaging with built-in encryption and voice capabilities, catering to a broader range of communication needs.