Choose Mattermost if you need self-hosting, deep integrations and have IT capacity to run it. Choose C Chat if you want a hosted messenger that frontline staff, guests and clients can join by phone in minutes, with auditable group chats.
Key takeaways
- Mattermost can be self-hosted, which gives full infrastructure control but requires IT effort.
- C Chat is a hosted service: nothing to install, patch or back up on your side.
- C Chat encrypts with TLS in transit and AES-256 at rest using per-organization keys.
- Owners and admins can audit and export C Chat group chats; direct messages stay private.
- Mattermost is better for developer and DevOps teams, integrations and on-premise requirements.
Mattermost is popular with engineering teams, public sector organizations and companies that want their chat inside their own infrastructure. It is open source, can run on your servers and connects to the tools developers already use. Those strengths come with a cost that is easy to underestimate: someone has to own the deployment.
Quick answer: Mattermost or C Chat?
The deciding question is whether you need to host it yourself. If your security policy or contracts require chat to run on infrastructure you control, or you want chat at the center of DevOps workflows, Mattermost is the right category and C Chat is not.
If what you actually need is secure, organized messaging for people who are mostly away from a desk, such as technicians, guards, cleaners and site supervisors, and you have no appetite for running servers, C Chat gets you there with no installation. People sign up with a phone or email code and join groups from an invitation.
Other self-hosted options worth comparing are covered in C Chat vs Rocket.Chat and C Chat vs Element (Matrix).
Side-by-side: where the effort goes
The table below has the row-by-row detail. The bigger picture is about where work lands:
- With self-hosted Mattermost, your team handles servers, upgrades, storage, backups, certificates and monitoring, and in return controls the whole stack.
- With C Chat, CGuard Pro runs the service. Your work is organizational: creating teams and groups, assigning owners and admins, inviting people.
- For end users, Mattermost feels like an office collaboration tool with channels. C Chat feels like the messenger people already use on their phones.
Encryption and oversight: two different models
With a self-hosted platform, your security depends heavily on how you configure and maintain it. That is an advantage for teams with strong IT, and a risk for teams without it.
C Chat gives you a fixed, documented model. Messages are protected in transit with TLS and stored with AES-256 encryption using keys specific to your organization. It is auditable encryption: team owners and admins can audit and export the team’s group conversations; direct messages between people are private. The C Chat platform only accesses content to moderate reported messages or for legal requirements, and that access is logged. Our guide to business messaging security explains how to weigh these trade-offs.
Team management, guests and offboarding
Mattermost usually ties into your directory and identity tools, which works well when every user is an employee with a corporate account. Operational businesses often have the opposite situation: many hourly workers, contractors and client contacts who will never be in the directory.
C Chat handles that with teams, groups and guests. You invite by link, QR, WhatsApp, SMS or email; a guest such as a subcontractor joins only the group you choose. Removing someone from the team ends their access to its groups. There is no account provisioning project to run first.
When Mattermost is the better choice
Mattermost wins clearly when:
- You must self-host, including in restricted or isolated networks.
- Chat is part of engineering work: alerts from monitoring, deployment notifications, incident playbooks.
- You need integrations, webhooks or plugins.
- Your users are mostly desk-based and already have corporate identities.
- You have, or can fund, the IT capacity to operate it well.
C Chat is not built for those requirements and does not offer integrations, an API or on-premise deployment.
Switching or using both
Some organizations keep Mattermost for engineering and IT, and use C Chat for operations staff and outside parties. That split avoids issuing directory accounts to people who only need a group and a phone. If you are building a shortlist, how to choose a secure messenger for business gives a structured checklist, and our Workplace from Meta alternative page covers teams moving from a discontinued tool. For long-form or external communication, team chat vs email helps decide what stays in the inbox.
To evaluate C Chat, open getcchat.com/c, create a team and invite one crew. It is free for now within the limits listed on the pricing page.
C Chat vs Mattermost: comparison table
| Capability | C Chat | Mattermost |
|---|---|---|
| Deployment | Hosted service only (web app; mobile apps coming soon) | Self-hosted or vendor cloud, depending on the plan |
| IT effort | None on your side | Servers, updates and backups when self-hosted |
| Sign-up | Phone number or email with a one-time code | Accounts managed by your admins or identity provider |
| Encryption model | TLS in transit + AES-256 at rest, per-organization keys (auditable) | Depends on your deployment and configuration |
| Company oversight | Owners/admins audit and export group chats; DMs private | Compliance and export features vary by edition |
| Integrations | Not offered | Broad integrations, webhooks and plugins |
| Field features | Location sharing, voice notes, one-tap 🚨 alert | Focused on technical and office workflows |
| Guests | Guests join a single group by invitation | Guest accounts available depending on edition |
| Price | Free for now, with team limits | Free and paid editions; check current pricing |
Mattermost details are based on general public information; they can vary by plan and change over time.
Frequently asked questions
Can C Chat be self-hosted like Mattermost?
No. C Chat is offered only as a hosted service by CGuard Pro LLC, accessed through the web app at getcchat.com/c with mobile apps coming soon. If your policy requires chat to run on your own servers or in an isolated network, Mattermost or a similar self-hosted platform is the right category.
Is Mattermost hard to run?
It depends on your team. Running any self-hosted chat means handling servers, updates, backups, storage and security hardening. Organizations with an IT or DevOps function do this routinely; small operational businesses often prefer a hosted tool. Mattermost also offers a cloud option; check their current plans.
Which is better for non-technical staff?
C Chat is designed to feel like a consumer messenger: sign up with a phone or email code, join a group from an invitation, send photos and voice notes. Mattermost's interface is closer to Slack and suits office and technical teams better.
Does C Chat integrate with developer tools?
No. C Chat does not offer integrations, bots or an API. It focuses on messaging for teams, guests and clients. If chat-driven workflows and integrations with code repositories or monitoring tools matter, Mattermost is the better fit.