Polymail - Native email app for email productivity.
echofin - Echofin helps communities grow, engage and monetize their following in ways no other platform has done so far.
KanbanMail - A Kanban board for your emails.
MirrorFly - World's Most Scalable Voice, Video & Chat SDK for Small, Medium & Enterprises
Crugo - Crugo is a simple group collaboration platform for your team
chatwee - Group chat app for online communities. Used wherever visitor interaction and engagement are key to the site's functioning.