IM+ supports simultaneously major IM services, including Google Talk, Twitter DMs, Yahoo!, AIM/iChat, ICQ, Jabber (and Slack through Jabber), etc. Developed by SHAPE Services
License: Freemium
Xabber is a powerful open-source XMPP client focused on privacy and customizability, making it ideal for users who prioritize secure messaging. In contrast, IM+ is a versatile all-in-one messaging solution that supports multiple protocols and offers additional features like voice calls and social media integration, catering to users looking for a comprehensive messaging experience.