Mattermost vs Office Chat

Microsoft Teams

Slack

Telegram

Microsoft Teams is a chat-based workspace in Microsoft 365 which lets users collaborate on documents, make voice & video conference calls, view chat logs, and more. Teams has replaced Skype for Business as Microsoft's online meeting solution.

Slack is a single workspace that connects users with the people and tools they work with everyday, no matter where they are or what they do

Telegram Messenger is a cloud-based mobile and desktop messaging platform supported by native apps on most popular operating systems and devices, allowing users or user groups to connect and conduct voice calls, send messages, multimedia and files of all types across an end-to-end encrypted service

Mattermost is an open source workplace messaging system for web, PCs & phones, that supports 1-1 & group messaging, file sharing, multiple languages, & more

Collaboration Tools

Third-Party Integrations

Mobile Access

Search/Filter

Video Conferencing

Discussions/Forums

Audio Calls

Open Source

Mattermost

Web-based

iPad

Android

Windows

Linux

iPhone

Starter

Professional

Enterprise

Strategy Analyst

Mattermost offers robust business instant messaging and live chat capabilities which allows us (teams) to seamlessly collaborate in real-time.

General Manager and Head of Operations

I like that Mattermost has all the tools that allows us (teams) to coordinate on projects via creation of unlimited communication channels.

Marketing Team Lead

Mattermost has a mobile application which I use on a daily basis to send files and collaborate vi a instant messaging.

Unavailability of builtin video conferencing capability is the only flaw but I have integrated with external web conferencing applications.

Financial Accountant

Mattermost gives me the ability to coordinate on projects with colleagues via company communication channels.

Accounts Payable Specialist

Mattermost allows me to connect with colleagues and customers via audio calls.

Video conferencing capability requires to be integrated with external web conferencing tools.

Member

Mattermost lacks video conferencing feature unless it's been integrated with other external applications.

Collections Manager

I like how Mattermost has a lot of features:- internal communication, screen sharing, web conferencing, business instant messaging and chat all in one place.

Peer Mentor

Mattermost unify teams in one place through unlimited communication channels.

It is enhance seamless and secure team communication and collaboration.

Sending large files is another great aspect about this tool.

Desktop Support Analyst

Mattermost boost performance by unifying team in one single integrated repository via unlimited communication channels.

Senior Systems Analyst

I do not like that Mattermost demands to be integrated with external web conferencing apps to boost video conferencing.

Founder

It has helped me to connect with my colleagues

IT Director

A slight learning curve, but in the end a very reliable and rebost system.  

Director of Operations

Team management, internal communication and bug tracking are at par with this tool always.

Graphic Designer

Mattermost boost internal and external communication through creation of unlimited communication channels.

Screen sharing enhances large file sharing via drag and drop.

Software Engineer

Mattermost was absolutely trivial to set up and maintain, which was a huge plus back during the first dawn of Covid where we struggled to find a solution to team chat that allowed us to host on-premise, keeping all our data local - a must for many projects which have complicated data privacy regulations that are a nightmare to work around with cloud based products

Sales Representative

Matter most is a daily tool vital for our comms at work especially since our setup is work from home.

Support

Sometimes pop-up notifications don't work properly and i miss some information.

One of the paid feature is unlimited search, and as a free user (10,000 line search limit, I think), it is often unclear whether you can't find what you're looking for because you hit the limit or because it's just not there.

Facilities Manager

Setup was smooth, server operation is transparent, user management trivial and everything just clicked into place when we were looking for a simple yet functional solution to team chat

Senior Software Security Analyst

Mattermost has basically the same features as Slack, but is open sourced and can be deployed on-premise, which allows for more customizations.

Business Analyst

Convenience of installation, practically free for most users, quick and easy implementation, very similar in appearance and functionality to top messengers, so it is very easy to move even a large group of users.

Web App Developer

Allows you to create secured and perfect internal communication and collaboration tool.

i like that i can use android version ass well.

Managing Director & Founder

We only integrated our Nextcloud into Mattermost and used Mattermost for team collaboration and chat.

Student

It has a great user interface and I like the fact that you can find a lot of gifs and create your own sticker.

We switched to this product because of lower price and option to have self-hosted messenger.

Video calling and file sharing is also implemented.

We liked that you can use integrations, but the "App Store" was kind of small.

QA Engineer

Tag people whom you want the message to be seen in a channel.

You can edit messages even after sending.

With large companies, you can jump in and out of groups, such as "support" groups or "tech" groups to quickly answer pressing needs, and then jump back out.

Software Developer

Sometimes there is a problem with file sharing.

project manager

it is one of the easiest and common communication tool whithin the company, it has customatizable ui and integrated emojis.

Reply functionality is a bit of a hassle because your replies tend to be a little bit scattered, unlike in Slack where it is more neat and organized.

Assistant consultant 

It was really helpful in connecting teams from L1 through L4 support on one platform where anyone can help resolve problem at hand.

You can prioritize chats making them favorite.

We change from mail communication to chat communication

It would be better if threads can be more visible

Works fast and does not consume a lot of memory.

Perfect low-priced alternative to another internal messaging tools.

Team Communication

Messaging

File Sharing

Chat

Colleague Communication

Ease of Use

Security and Access Control

Performance and Speed

Pricing

Large Enterprises

Small Business

Mid-size Business

Connecteam

An all-in-one employee app that's both powerful, affordable and easy to use, especially for the mobile workforce.

HulerHub

HulerHub is a people-first employee experience platform that reduces tech sprawl and supports HR teams to deliver first-class personalised digital experiences to employees on any device, at any time, anywhere.

Office Chat is an internal instant messaging application for SMBs, allowing employees to communicate with one another whether in the office or out in the field

Chat/Messaging

Access Controls/Permissions

Alerts/Notifications

Office Chat

Startup

Business

HIPAA/BAA

Marketer

It helps me reduce the amount of email clutter and provide a more efficient way to communicate with team members

enhance security features because some teams may requiremore robust security features than what is currently offered by office chat

The tool is available as amobile app and desktop app, making it easy to stay connected and up to date on the go

Prior Authorization Specialist

On many occasions we have needed to search a chat and the only way of doing so is by scrolling.

Digital app manager 

Performance issues and bugs or error sometimes.

Foster Marketing Agent

There is no option to delete old messages, you can only leave the entire chat and start a new one which requires all other team members to do so as well.

Manager 

My work of receiving reports is made easy by off ice chat

Partner and sales associate

There are some things that are frustrating, for example when I'm catching up on a conversation and someone sends a new message, it sends me back to the bottom of the thread.

Very easy to receive reports and sending reports with the office chat

This is best use for office chatting, and file sharing for internally usage.

I like that it includes GIFs and emoticons, some office oriented chat software does not.

We just had to explore alternatives and upgrade because of the lacking features that were crucial for us and we couldn't go without.

Librarian

I can't erase older and unnecessary messages but it's manageable.

It really stinks that there isn't an employee and contact database too.

I also appreciate the ability to designate communication as necessary.

communicate messages to the team in a secure manner from abroad.

Product Management Analyst

I can't delete unwanted conversations which are old

Broker

Search engine customization and display of results process almost renders this option unusable  (choice of msg queues, the way results are shown, more than a word and/or etc).

Sales And Marketing Specialist

You may also check their status for seeing when they're at their computers or absent from their workstations.

This becomes very time consuming and annoying.

We can have 10/20/40 msgs between we check a queue. When you open a particular chat queue, the screen jumps to last message instead of picking up from where left.

Banker

I’m amazed to be honest with this software

Overall it's an easy to use product with great features.

President

For us, the ability to message all the nurses from the frontdesk would be valuable, without the frontdesk having to see all the traffic between the nurses

Would be better if the screen / caht queue would open and show the last msg the user read and maybe mark or distinguish between read/unread messages (market / color etc)

The group function limitations.    That you could not create a group to message to, unless the person is a member of that group.  

Surgeon

The front desk staff of the practice are located distant from the staff offices in the back of the building, so this is time saving for a quick question or comment.  

Franchise Owner

Many team members are unable to see messages sent because they get automatically logged out if they do not use the app daily.

It also allows the front staff to be less distracted if they are managing phone calls or patient intake.

Addictions Recovery Facilitatoy

On my Android phone it is an absolute nightmare, forever closing whatever I'm doing and bringing up Office Chat regardless of whether I've just received a message or not.

Designer

Every time the connection is lost chat resends any images you have sent to coworkers throughout the day.

This has enabled us to be in contact with a doctor's office that sees our surgical patients.

Owner

Need to be specific with settings so that message dont “pop up” when a patient is in the room.

Business Coordinator

This product has made communication across a busy practice much easier, especially for quick questions between departments.

PL administator

I also like that I can have it on my phone and computer so I can switch easily between the two.

Drug and alcohol technician

It may have this function but I don’t know enough about it to mute conversations that are not relevant at the time!

The web version could be updated to make the user more aware of notifications.

We also have regulations in our industry to keep certain conversations confidential from other staff.

Customer Service

Overall once we figured out what worked best for everyone, Office Chat has improved communication and made getting in touch with others more efficient.  

Attorney

Ability to connect two offices located in different cities

Management Support

sometimes i leave a colleague a couple of questions and when she answers i have to figure out on what question she is replying to.

Applications

There are also lots of function beside text chatting.

Customer Service Rep

I love being able to communicate with my co workers even from home.

scheduler/diagnostic clerk

it helps our clinic communicate way more efficiently

I like the file-sharing capability and administrator settings

we use this product excessively within our company and employees.

Medical Records Supervisor

It certainly saves people from running around the building as much as they used to.

Mattermost vs Office Chat Comparison (2026)

Mattermost

Office Chat

Overview

Video & Screenshots

Pricing

User reviews

Key features

Integrations

Alternatives