Raven encrypts a message, then disguises it as an ordinary sentence — a tweet, comment, or caption — that only someone else’s copy of Raven can unseal. Post the carrier text anywhere; a shared key does the rest, with no server, no accounts, and nothing stored. One delivery mode broadcasts to Raven’s own network and arrives in real time; the other hides the message inside one specific post, with no fallback if that post gets missed. Free, capped at 500 characters.