Yours, signed
Everything you post is signed by your own key. Nobody, including us, can post as you or change what you wrote.
Present day. Present time.
Lain IO
A social app where your account is a key only you hold, your messages are end-to-end encrypted, and Lain, your AI companion, runs on your phone.
Private messages
Direct messages are end-to-end encrypted with the Signal protocol. Relays only ever carry ciphertext.
Lain, on device
Lain's model and voice run on your phone. Your conversations with her aren't sent to a server.
Light by design
Posts last a month. The community's top posts are kept for good; the rest fades, like the Wired intended.
Safety
Lain IO is for people aged 17 and over. Every post, profile and message can be reported from the app, and reports are reviewed within 24 hours. Read our Community guidelines and Child safety standards.