Pidgin-Encryption transparently encrypts your instant messages with RSA encryption. Developed by Bill Tompkins
License: Open Source
Off-the-Record Messaging is primarily focused on providing secure, easy-to-use messaging without the need for accounts, while Pidgin-Encryption offers broader integration with various messaging services and customizable encryption settings, making it suitable for more advanced users. Both prioritize user privacy, but their approaches and functionalities differ significantly.