Hitokoe is a private notebook of the people you actually meet. Someone enters it only one way — you meet in real life. One door for strangers, one shake for friends. No requests left hanging.
Show your code, they scan it — then they knock, and you say hello back. Both of you are present, so the answer comes now. No friend requests left soaking for weeks.
Open each other's page, then shake — two hands, one moment, no buttons. The Pulse warms as you close in, and on newer iPhones precision finding points the way.
A few seconds of face and voice — captured only when you're actually together. Games and side-by-side "Together" clips land in both notebooks. Years later, watch a half-forgotten friend grow up across your meetings, voice and all.
Sit down to a shared session — one timer on both phones. Earphones in, hold the mic and it's a tiny walkie-talkie: your voice lands in their ear, let go and the channel is theirs. Miss them between meetings? Say it with a card.
No walls of instructions — a hand-drawn comic teaches the whole thing. A month ago they were strangers; then one hello, and a notebook that grows every time they meet again.
Everything lives on your two phones. No account, no cloud, no analytics. Turn the internet off — Hitokoe still works. Back it up to a file whenever you like.