CETEChat
Cypher End-To-End Chat

The chat only your people can read.

Messages, calls, files and family locations for your company, your clients, your family and your club. Everything is sealed on each person's device before it is sent, so not even we can read a word.

Free for families and companies. No card, no ads, no tracking.

Sam, Jordan and youSmith St renovation Encrypted

Gate code for Smith St is 4471. The dog is friendly.Sam, 7:42 am

Thanks. Running ten minutes late, I'll let the tenant know.7:44 am

Quote for the bathroom is in. Can you check it before lunch?Jordan, 8:05 am

On your phone: readable, but only on the devices of the people in this chat.
  • End-to-end encryptedMessages, calls, files, photos and locations.
  • Kept in SydneyAustralian-owned, Australian servers.
  • Free for everyoneFamilies up to 50, companies up to 300.
  • No ads, no trackingWe never sell or read your data.

One app for every part of your life.

Work, clients, family and friends each get their own space, kept apart, with one login. Switch between them in a tap.

Companies and teams

Channels, direct messages, threads and calls for your staff, with the admin controls a business needs.

  • Up to 300 people, free
  • Roles, audit log and required two-factor
  • Sign in with Microsoft or Google

You and your clients

Invite clients as guests. They see only the conversations you share, and you look the part with a verified business tick.

  • Guests and followers
  • Payment requests and a shop in chat
  • Broadcast channels with a QR code

Families and friends

A private space with a family map, places and alerts, crash detection and SOS, all encrypted.

  • Up to 50 people, free
  • Shared lists and events
  • Live location and check-ins

Clubs and communities

Announcements, polls and events for your team, school group or committee, without sharing phone numbers.

  • Follow a channel with a link
  • Polls, events and reminders
  • Voice chat to drop in and out

Your chat, calls, files and family map. In one private app.

Every feature is end-to-end encrypted, on every plan, on phones and computers. Here are the highlights. The full list has 140 of them.

CETEChat on a computer: channels on the left, a conversation with threads and reactions on the right

Talk the way you like.

Channels for the team, direct messages and groups, threads for side conversations, and every little thing that makes chat feel easy.

  • Channels and threadsPublic, private and broadcast.
  • Voice messages and video notesRecord, send, play at speed.
  • Polls, events and shared listsVote, RSVP, tick things off.
  • Send later and remindersSchedule a message or a nudge.
  • Urgent messagesKeeps beeping until it is read.
  • Bring your historyImport from WhatsApp or Slack.
All messaging features
Video call with the site team5 people, screen shared, captions on
Live
Voice chat: Weekend rosterDrop in and out, nobody is rung
3 in
Client walkthrough, Thursday 2 pmCall link sent to someone outside
Scheduled
Call Mum backCall reminder at 6:30 pm
Reminder

Calls and meetings, sealed end to end.

Voice and video in any chat, group or channel, with the meeting tools you expect and nobody listening in, including us.

  • Screen shareA screen, a window or a tab.
  • Backgrounds and blurPlus filters and low light.
  • Raise hand, captions, recordHost controls and waiting room.
  • Call linksInvite people from outside.
  • Keep chattingMessage and send photos mid-call.
  • Pocket modeKeep a call going hands-free.
All call features
App lockPIN, Face ID or fingerprint, on your terms
Optional
Private VaultHidden photos and files behind your code
Private ModeBlurs messages until you tap them
Disappearing messagesOne message or a whole conversation
Decoy PINOpens an empty-looking app if you are forced

A privacy toolkit, not just a lock icon.

Encryption protects messages on the way. These protect them on your phone, from the person sitting next to you, and from you changing your mind.

  • Locked chatsOut of your list, behind your code.
  • Screenshot blockingOn disappearing photos, in the app.
  • Forward secrecyKeys change, old ones destroyed.
  • Signed recordsProve what was said and when.
  • Delete for goodErased from our servers.
  • Two-factor and recovery keyStay in, even if you forget.
All privacy features
CETEChat Home on a phone with Around me, Private Vault and family cards
A CETEChat conversation on a phone

Know your family is safe. Without being watched.

A family map like the location apps you know, except every location is end-to-end encrypted, everyone chooses for themselves, and the family is always told.

  • Family mapWho is where, with battery.
  • Places and alertsArrive and leave Home, School, Work.
  • Crash detection"Are you OK?", then it alerts family.
  • Driving reportsSpeed, braking, phone use, a score.
  • Check-in timers and SOSHelp, with your location.
  • Around meFood, fuel, parking and more nearby.
All family and safety features
Verified business tickYour legal name and ABN, checked
Verified
Clients as guestsThey see only what you share
Payment requestA$240.00, paid by card in the chat
Paid
Catalogue order #1042Two items, pick up Saturday
Ready
Sign in with MicrosoftStaff with your email domain

Built for business, from day one.

Everything an owner needs to run a team and look after clients, free for up to 300 people.

  • Roles and the audit logOwner, admin, member, guest.
  • Required two-factorAnd an optional app lock rule.
  • Microsoft, Google and SCIMCompany sign-in and directory sync.
  • Get paid in chatYour own Stripe, we take 0%.
  • Sell in chatA catalogue with photos and orders.
  • IntegrationsPost into channels from your systems.
All company features

AI that never sees your messages.

Catch me up summarises a busy chat, Translate turns a message into your language, and voice messages become text. It all runs on your own device, so your words never go to anyone's server.

Catch me up42 new messages in #site-team, in four lines
On device
TranslateFrom Vietnamese, without leaving the chat
On device
Voice to textRead a voice message in a meeting
On device

Private by design, not by promise.

Most apps protect your messages on the way and then read them on their servers. CETEChat locks them on your phone, and only the people in the conversation hold the keys.

1

Keys live on your devices

Each conversation has its own key, made and kept on the devices of the people in it. We never have it.

2

Locked before it leaves

Messages, files, call audio and video, and locations are encrypted on your phone before anything is sent.

3

We only hold scrambled data

Our servers in Sydney store and pass along encrypted data they cannot read, and erase it when you delete.

What we can never see

  • What your messages say
  • Your photos, videos, voice messages and files
  • What is said or shown on a call
  • Where anyone is on the family map
  • Your Private Vault and locked chats
  • Names of your places, like Home or School

What we still need to run the service

  • Your name, email and the spaces you are in
  • Who is in a conversation, so messages reach them
  • When a message or location arrived, and its size
  • Your plan and billing details
  • The device notification address, so we can alert you

Want the details? Read how CETEChat keeps your data safe.

Running a business? Meet CETECommand.

Quotes, invoices, card payments, jobs, scheduling, timesheets and payroll, with this same private chat built in. Same account, one tap away.

CETECommand: the business home screen with jobs, invoices and the schedule

On every phone and computer.

The CETEChat apps for iPhone and Android are on their way to the App Store and Google Play. You do not have to wait: CETEChat installs from your browser in a few taps, with notifications, and works the same.

Your device

iPhone and iPad

Coming soon toApp Store

Or now, from Safari

  1. Open CETEChat in Safari.
  2. Tap Share, then Add to Home Screen.
  3. Tap Add, and open it from your Home Screen.
Your device

Android

Coming soon toGoogle Play

Or now, from Chrome

  1. Open CETEChat in Chrome.
  2. Tap Install app in the menu.
  3. Find it with your other apps.
Your device

Mac and Windows

Open CETEChat

Keep it in your Dock or taskbar

  1. In Chrome or Edge, click the install icon in the address bar.
  2. On a Mac in Safari: File, then Add to Dock.
  3. It opens in its own window, like any app.

Chat is free. For everyone.

Every CETEChat feature, fully encrypted, for families, friends and companies. Businesses that want quotes, invoices, jobs and timesheets add CETECommand.

CETEChat PersonalFreeFor families, friends and clubs, free forever
  • Up to 50 people
  • 2 GB of encrypted files
  • Voice and video calls
  • Family map, check-ins and SOS
  • No ads, no tracking, ever
Start a personal space
CETEChat for teamsFreeFor companies and teams, free forever
  • Up to 300 people
  • 10 GB of encrypted files
  • Channels, DMs, threads and calls
  • Clients as guests
  • Required two-factor and audit log
  • Webhooks and bots
Start free
CETECommand For businessA$29a month and up, by how many people use itFounding price until 31 December 2026
  • Everything in CETEChat
  • Quotes, invoices and card payments
  • Jobs, schedule and subcontractors
  • Timesheets, forms and payroll
  • Xero, QuickBooks and MYOB
  • Free forever: 3 invoices and 3 quotes a month
See CETECommand plans
EnterpriseLet's talkFor larger or regulated organisations
  • Custom people and storage limits
  • Dedicated onboarding
  • Your own private server, in Australia or on your premises
  • A direct line to our team
Contact us

CETEChat needs no card. Each person can have one personal space and one free company. CETECommand starts free, and the first 100 businesses get everything free for 3 months with no card (30 days after that). Only people who use CETECommand count; everyone else chats free. Prices in Australian dollars.

Straight answers.

Still wondering about something? Email support@cetechat.com and a real person in Sydney will answer.

What does CETE stand for?

Cypher End-To-End. Every message, file, call and location is locked with a cypher on the sender's device and only unlocked on the devices of the people in that conversation. Nothing in between, including our servers, can read it.

Is CETEChat only for businesses?

No. Companies use it for their teams and clients, and it works just as well for a family, a group of friends or a club. Choose Personal when you sign up: it is free forever for up to 50 people, with the same encryption as everyone else. If it turns into a business, you can change it to a company workspace later.

Can CETEChat staff read our messages?

No. Messages, files, calls and locations are encrypted on your devices with keys we never hold. We run the service without being able to see what is said, what is sent or where anyone is.

Is there a family location map like Life360?

Yes. In a personal space, each person can share their location on the family map: who is where, their battery, places like Home and School with arrive and leave alerts, crash detection, driving reports and SOS. Unlike most location apps, the locations are end-to-end encrypted, so even we cannot see them, and nobody can turn sharing on for someone else.

Can I chat with people outside my company?

Yes. Pick a @username and share it, or let people scan your QR code or tap an NFC card. They send a contact request, and nothing reaches you until you accept. Those chats sit in your own Contacts space, apart from any company. Nobody can browse the list of users, and you can hide yourself completely.

Can our clients use it?

Yes. Invite clients as guests: they only see the conversations you share with them. Owners can let chosen staff invite clients, and can choose to see staff and client conversations. When that is on, everyone in the chat is shown a clear label, so nothing is hidden.

Do I have to use a PIN every time?

No. The app lock is your choice. Lock CETEChat with a PIN, Face ID or fingerprint and choose when it asks: as soon as you leave, after a few minutes, or only when the app opens. A company can require it for its staff.

What if someone forgets their password?

They reset it by email. If they saved their recovery key, every conversation opens again straight away. Without it, they get new keys and their conversations come back as soon as someone in each one is online.

Where is our data kept?

On servers in Sydney, Australia. Messages and files are stored encrypted, only your people hold the keys, and daily backups are kept for 14 days.

Can we delete conversations completely?

Yes. Anyone can clear a conversation from their own view. Company owners and admins can delete every message and file in a conversation, or a whole channel, for everyone. Deleted content is erased from our servers, not archived.

Is the free plan really free?

Yes. CETEChat is free for everyone, with every chat feature and the same encryption: personal spaces for up to 50 people and companies for up to 300, with no card and no time limit. You only pay if your business wants CETECommand for quotes, invoices, jobs and timesheets.

What is CETECommand?

CETEChat for business. It adds quotes, invoices, card payments, jobs, scheduling, timesheets and payroll, with your CETEChat chat built in. It is the same account: tap CETECommand in the app and you are there.

Your conversations are your business.

Start a free space for your team or your family in a minute. No card, no ads, and nobody reading along.