The broader Superhuman suite includes Grammarly's writing features, Coda's collaborative workspace and Superhuman Mail's inbox tools. Grammarly , best known for its writing assistance software, announced Wednesday that it is rebranding as Superhuman as it focuses on a broader suite of AI productivity tools. Founded in 2009, Grammarly has built a user base of more than 40 million people and expanded in recent years with the addition of the workspace platform Coda and email...