Grammarly

From Crunchbase:

Grammarly’s digital writing assistant helps 30 million people write more clearly and effectively every day. Grammarly works to empower users whenever and wherever they communicate, building a product that scales through multiple platforms and devices. Across offices in San Francisco, New York, Kyiv, and Vancouver, Grammarly’s values-driven team supports its expanding user base and continues to develop its writing assistant into a truly comprehensive communication partner. With integrity and innovation, Grammarly strives to help all the world’s two billion English speakers feel heard and understood.

First spotted in 2016