Signal, Facebook Messenger, OpenBoard Whiteboard, Pidgin, Adium, Trillian, Groupboard, Empathy, Scribblar, IDroo, Linphone, Conversations, IPEVO Whiteboard, FluffyChat, LiveBoard, Mercury Messenger, Scriblink, Yoono, WrittenUp, climm, Jappix, skrbl, naim, Spaz, MCabber are some alternatives to Coccinella.