Android Apps to Support for Multiple protocols

Zoiper is a versatile and easy-to-use SIP softphone designed for clear voice and video communications. It offers excellent audio quality, robust security features, and seamless integration with various communication protocols, making it ideal for personal and business use.

Conversations is a privacy-focused, open-source XMPP/Jabber client for Android. It offers robust end-to-end encryption using OMEMO and OTR, supports modern XMPP extensions, and provides a secure, decentralized messaging experience without relying on proprietary servers. It's an ideal choice for users prioritizing security and open standards.

WeeChat is a highly customizable, free and open-source command-line based chat client. Designed for efficiency and portability, it supports multiple protocols including IRC and XMPP, making it a versatile tool for connecting to various networks.

Fring was a pioneering mobile application that unified communication across popular platforms like Skype, MSN Messenger, ICQ, and Google Talk directly from your iPhone, offering voice calls, video calls, and messaging.

uGet is a powerful and lightweight open-source download manager for Windows and Linux. It accelerates downloads, supports multiple protocols like HTTP, FTP, BitTorrent and Metalink, and features resume capabilities, browser integration, and robust clipboard monitoring.

IM+ is a versatile instant messaging application designed to unify communication across multiple platforms. It supports a wide array of popular services, including Google Talk, Twitter DMs, Yahoo!, AIM/iChat, ICQ, Jabber, and even Slack. IM+ simplifies staying connected with friends, family, and colleagues, offering a centralized hub for all your chat needs.

FrostWire is a powerful, free, and open-source BitTorrent client with integrated search, media player, and support for various file-sharing protocols. It simplifies downloading and sharing large files, including music, videos, and software, while offering features like YouTube and Soundcloud downloading.

Trillian is a versatile, multi-protocol instant messaging client that unifies various communication platforms like IRC, XMPP, and more into a single, user-friendly interface. It's designed for both personal and team collaboration, offering features like encrypted chats, group collaboration tools, and extensive customization options.