Just (formerly Just Words) is an AI-driven content and messaging platform that personalizes and optimizes user-facing copy in real time, automatically generating and testing variations of notifications, emails, and in-product messaging to lift engagement and conversion. The platform lets product and growth teams continuously experiment with AI-written content tuned to each user and channel, replacing manual copywriting and A/B testing cycles. Counting brands such as Grammarly, BeReal, and BiggerPockets among its users, the startup focuses on turning generative AI into measurable messaging performance. Just Words raised a $1.7M seed round backed by Peak XV Partners (formerly Sequoia Capital India & SEA) and Y Combinator to scale its AI personalization engine.