iptux vs SUM - Secure Ultimate Messenger

iptux is an open source, cross-platform LAN messenger software. It allows users to chat and share files easily with others on the same local network. Some key features are group messaging, file transfers, encrypted connections and customizable interfaces.

SUM is a free and open-source encrypted messenger app for Android. It allows secure messaging with end-to-end encryption, ensuring chats and calls remain private. SUM also has group chats, file sharing, and voice/video calling features.