mono - private messenger

the app to have that conversation. one line. two people. mono is an encrypted 1-to-1 messaging app. you can have only one conversation at a time — no chat lists, groups, channels, or feeds. you connect via a unique, ephemeral 18-character key that rotates every 180 seconds. no matchmaking, stranger discovery, or public directory. no one can reach you unless you deliberately shared a key with th…