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
Kadu excels in user-friendly design and multiple platform support, making it ideal for casual messaging. In contrast, IM+ offers robust integration with social media and advanced privacy settings, catering to users who require versatility and security.