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
IM+ offers a more customizable interface and supports multiple messaging protocols, making it versatile for users needing cross-platform communication. In contrast, KakaoTalk excels in social media integration and provides a rich set of features tailored for users in South Korea, including payment and business tools.