Private by design.
Calm on purpose.
One space for the people who matter and the ideas you keep. Messaging, calling, your notes, and a little help from on-device AI — all yours, and only yours.
Chochi
Encrypted
Illustration — end-to-end encrypted by design.
Everything close. Nothing exposed.
Four things you use every day, built to keep your life yours.
Messaging
End-to-end encrypted chats, one-to-one and in groups — Signal Protocol for direct messages, MLS for the group. Just conversation, kept private.
Calling
Voice and video that feel effortless and stay encrypted end to end. Catch up, face to face, without an audience.
Spaces
Your encrypted second brain: notes, links, and ideas that connect to each other, searchable on your device, and never readable by anyone but you.
On-device AI
A companion that helps you think, learn, and stay organized — running on your device, so your conversations and notes never leave your phone.
Where a chat becomes a thought worth keeping.
Other apps make you choose: talk in one place, think in another. Chochi closes that gap. Save any message straight into Spaces — your private, encrypted second brain — where notes link to each other, search runs on your device, and everything you keep stays yours to export any time.
- Save from chat — turn a conversation into a note in a tap
- Linked notes and backlinks that build a map of your thinking
- On-device search, so your knowledge never leaves your phone
- Yours to export, always — no lock-in, no exceptions
Most apps make you the product. Chochi makes you the point.
Privacy isn't a toggle you go hunting for — it's the architecture. Your messages are encrypted so only you and the people you're talking to can read them. The AI runs on your device. The server is built to know as little as it possibly can.
- No ads
- No tracking
- We can't read your messages
- Your data isn't for sale
A note on honesty: Chochi's encryption is designed end-to-end and is being independently audited before launch — we'll publish the results rather than ask you to take our word for it.
Good things to ask.
What is Chochi?
Chochi is one calm, private space for the people who matter and the ideas you keep: end-to-end encrypted messaging and calling, a personal-knowledge workspace called Spaces, and on-device AI with a companion that helps you think — without ever seeing your data. Free at the core.
How private is it really?
Privacy is the design, not a setting. Messages and calls are end-to-end encrypted (Signal Protocol for one-to-one, MLS for group conversations), the AI runs on your device, and the server is built to know as little as possible. The encryption architecture is being independently audited before launch — and we'll publish the results.
What are Spaces?
Spaces is your encrypted second brain, built right into Chochi. Keep notes, links, and ideas that connect to one another with backlinks and a knowledge graph, save messages straight from a chat into a note, and search it all on your device. It's the "talk and think in one place" idea — and it's yours to export any time.
Does the AI see my messages?
No. Chochi's AI is designed to run on your device, so your conversations and notes stay with you. The companion can help you think, learn, and stay organized without your data leaving your phone.
Is Chochi free?
Yes — Chochi is free at the core, with optional plans for people and families who want more. Privacy is never the paid tier.
When does it launch?
Soon. Leave your email below to join the early list — you'll be among the first invited when Chochi opens, after the independent security audit lands.
How do I get early access or ask a question?
Join the list below, or write to hello@chochi.com. We read every note.
Be there when the doors open.
Leave your email and we'll invite you first. Questions or ideas? Tell us — we read every note.
No spam, ever — a single note when we open. Prefer email?
Write us at hello@chochi.com.
How we handle your info: privacy notice.