ChatSecure is a messaging application for iOS which allows OTR and OMEMO encryption for the XMPP protocol. Developed by Chris Ballinger and The Guardian Project
License: Open Source
ChatSecure is a privacy-focused messaging app that offers end-to-end encryption and anonymous communication, making it ideal for users who prioritize security. In contrast, WhatsApp Messenger is a widely-used platform with a rich feature set and social media integration, but it raises concerns about data privacy.