Business messaging, encrypted and under your control
C Chat brings your team, groups and guests into one app encrypted with TLS and AES-256, with a dedicated key per company. Admins can audit groups; direct messages stay private.
- TLS + AES-256 at rest
- Free up to 50 members per team
- 8 languages
- Web · iOS · Android
What is C Chat, in two sentences?
C Chat is encrypted messaging for businesses and teams: direct messages, team groups, external guests, photos, files, voice, location and alerts. It uses auditable encryption — TLS in transit and AES-256 at rest with per-organization keys — so the company keeps oversight of its groups without reading private direct messages.
Built for teams that don’t sit at a desk
As simple as WhatsApp
Sign up with a phone or email code. Talk to any user by @username or contacts, with no requests.
Organized like a company
Teams with groups, admins and guests. Remove access for people who leave the team.
Encrypted and auditable
AES-256 at rest with per-organization keys and TLS in transit. Group oversight for compliance.
Everything your team needs to communicate
Talk to anyone
Direct messages to any C Chat user by @username, phone contacts or your team, with no requests.
Teams and groups
A workspace for your company with groups by site, department or project, plus admins.
Guests
Contractors, cleaning staff or clients join one specific group by invitation.
Invite your way
By link, QR, WhatsApp, SMS or email. People join with a verification code.
Photos, videos and files
Share evidence and documents up to 25 MB per attachment.
Voice notes
For people who work with busy hands or on the move.
Location
Share your location when you decide to.
One-tap alert
Alert a whole group instantly when something happens.
Read receipts
See who read the notice. Typing indicator included.
Pinned messages
Keep what matters on top: instructions, contacts, schedules.
Search
Find old messages without endless scrolling.
8 languages
English, Spanish, Portuguese, German, French, Italian, Polish and Dutch.
Auditable encryption vs. end-to-end
They are two different models. End-to-end encryption keeps everyone except the participants from reading messages, including the company. Auditable encryption still encrypts in transit and at rest, but lets the business oversee its groups for compliance.
How C Chat protects messages
- TLS in transit between your device and the server.
- AES-256 at rest with a dedicated key per organization.
- Phone contacts are hashed (SHA-256) on your device; the server does not store those hashes.
- The platform only accesses content to moderate reported messages or for legal requirements, and every access is logged.
Who can read what
- Team groups: owners and admins can audit and export them.
- Direct messages: private between the people talking.
- Security companies on CGuard Pro: can audit their groups and security-related chats with guards or the office.
From shift handover to emergency alerts
Shift Handover Communication That Sticks
Incident Reporting by Chat, With Photos
Site Groups: One Chat per Location
Coordinate Contractors in One Secure Chat
Client Communication in a Dedicated Group
Emergency Alerts for Teams
Field Team Communication Without the Chaos
Move Work Off Personal WhatsApp Groups
Photos, location and alerts where work happens
Share a photo of the incident, your location or a PDF in the right group. With one tap, the 🚨 alert reaches the whole group, highlighted.
Industries
- Security Companies
- Construction Companies
- Property Management Communication
- Cleaning and Janitorial Teams
- Hotel Staff Communication App
- Logistics and Warehouses
- Store Team Communication for Retail
- Plant Floor Communication for Manufacturing
- Restaurant Staff Communication
- Secure Team Messaging for Healthcare Staff
- Condos and HOAs
- Event Management Team Chat
Free for now
- Up to 50 members per team
- 5 teams per account
- 30 groups per team
- Attachments up to 25 MB
Frequently asked questions
What is C Chat?
C Chat is an encrypted messaging app for businesses and teams, built by CGuard Pro LLC. It offers direct messages, teams with groups, guests, photos, files, voice notes, location sharing and alerts, on the web, iOS and Android.
Is C Chat end-to-end encrypted?
No. C Chat encrypts messages in transit with TLS and stores them encrypted with AES-256 using a dedicated key per organization. It is auditable encryption: team owners and admins can audit and export the team’s group conversations, while direct messages between people stay private.
How much does C Chat cost?
C Chat is free for now, with limits: up to 50 members per team, 5 teams per account, 30 groups per team and attachments up to 25 MB.
How do I sign up?
With your phone number (you get a code by SMS) or your email (you get a code by email), just like WhatsApp. Then you choose your name, an optional @username and a photo.
Can I invite people from outside my company?
Yes. Contractors, cleaning staff or clients can join a specific group as guests, through a link, a QR code, WhatsApp, SMS or email.
Bring your team to C Chat
Encrypted messaging for businesses and teams. Free for now — up to 50 members per team.