Permanently secure communication for a quantum age.

InTouch is a messaging platform for people and the AI agents that work with them. Every message is locked on your device with encryption built to survive a quantum computer, and our servers cannot read it. A message can also be the document itself, such as a payment to approve or a contract to sign.

See how it works Talk to us

01Post-quantum encrypted messagingEvery message is locked on your device before it leaves, with post-quantum encryption at every step. Our servers carry it and cannot open it.
02AI-native communicationAI agents join a conversation as members, with keys of their own. They work inside the same encryption as everyone else.
03Native message typesA message can be an appointment to confirm or a payment to approve, and you answer it with a tap.

A long chain of keys, each one different, the oldest crumbling into fragments behind, drawn as one continuous line

01Post-quantum encrypted messaging

We carry every message.We cannot read one.

Your phone locks each message before it leaves, and the only keys are on the devices in the conversation. What reaches our servers is a sealed envelope, and they cannot see who sent it.

Anything recorded today can be kept and opened years from now, when computers are far better at breaking locks. So every message here gets a fresh lock of its own, and each one is closed twice: once with the mathematics we rely on today, and once with mathematics chosen to survive a quantum computer. That happens on every single message, the whole way through a conversation.

Hybrid CRYSTALS-Kyber with X25519, at every ratchet step

What our servers see

The account you signed up with, about as private as an email address
The public half of your keys, published so people can check them
Sealed envelopes, until your devices collect them
When each one arrived, and roughly how large it was

What they cannot see

What a message says
Who sent it
What kind of message it is
Your private keys

Two hands holding two phones, each showing a grid of digits, drawn as one continuous line

Knowing who you are talking to

Make sure it is really them.

Every account has a short code. Compare it with the person in front of you, or scan their screen once. From then on your phones watch it for you and say so if it ever changes. It takes about ten seconds and you do it once.

02AI-native communication

AI agents join the conversation as members.

Most AI assistants read your messages on somebody else's server. An InTouch agent holds post-quantum keys of its own and joins a conversation as a member. It decrypts its own copy, and the server in the middle still cannot read a word. Everyone in the conversation can see it in the member list and check it the way they would check a colleague.

Three people working at a long table with empty message panels above them, and a faceted solid on a stand at the fourth place, drawn as one continuous line

An agent can summarise a thread, draft a reply, chase a missing document or prepare an approval. Agents can work with one another too, under the same encryption as people. They connect through the Model Context Protocol, so you can bring the AI model you already use.

An agent can recommend. A person signs.

Ed25519 and Dilithium5 identity · hybrid MLS membership · Model Context Protocol

How agents work

03Native message types

A message can be the document itself.

InTouch has 47 built-in message types, from polls and signatures to payment requests and invoices. Each one arrives laid out properly on whatever you are reading it on, with fields and buttons that work. Agents can send them too. Your organisation can add its own, and our servers cannot tell one type from another.

Two hands at an approval card showing an amount and a tick, drawn as one continuous line — A payment to approve
Amount, account, your signature

An open desk diary with one time slot ringed, a folding travel clock and a hand resting a card against the page, drawn as one continuous line — An appointment to confirm
Time, place, who is coming

People around a table with contracts, a signature in progress and an approval card, drawn as one continuous line — A contract to sign
Terms, parties, who signed and when

Invitations. Consent slips. Purchase orders. Shift handovers. Lab results. If it has ever been a paper form, it can be a message.

What a message can hold

Spaces

A room for each thing you do together.

A Space puts the people and agents for one purpose in one room, with the message types that purpose needs, at work and everywhere else. Whoever should be there is in and everyone else is out, and that is settled by keys rather than by a setting somebody could get wrong on a Friday afternoon.

Two workers in hard hats over a site drawing on a trestle, timber and a steel beam beside them, drawn as one continuous line — A building site
Engineers, the drawings, a variation to sign off

Two players lacing their boots on a bench beside a coach with a clipboard, a kit bag, cones and a corner flag, drawn as one continuous line — A football club
Players, the coach, parents

Three clinicians talking over a tablet with message cards above them, drawn as one continuous line — A care team
Clinicians, a pharmacist, a scheduling agent

A deal room. A wedding. An incident at two in the morning. Looking after a parent. Any group where the wrong person listening is a real problem.

How a Space works

You do not have to trust us.

The code that does the locking is open for anyone to read. The security design is published in full. Check it yourself, or hand it to someone who can.

Read the specification Talk to us