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
Dasher Messenger offers a more feature-rich experience with voice and video calling, making it suitable for casual users. In contrast, ChatSecure prioritizes security and privacy with its open-source nature and strong encryption, making it ideal for users concerned about their data and anonymity.