
Slack
Rocket.Chat
Discord
Element.io
Telegram
Zulip
Microsoft Teams
Mattermost is an open source alternative to Slack.

Aircall
Dialpad
JustCall
RingCentral
NICE inContact
Genesys Cloud
Nextiva
Work locally, grow globally

Which is more popular?
Based on our record, Mattermost seems to be more popular. It has been mentioned 75 times since March 2021.
Website, pricing, platforms and company facts side by side.
|
|
|
|
|---|---|---|
| Website | mattermost.com | cloudtalk.io |
| Pricing | ||
| Platforms | — | |
| Company | Startup from the United States | Startup from Slovakia · 2018 |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of Mattermost yet.
CloudTalk is a contact center management solution that enables businesses to streamline communications with teams and customers using virtual call systems. It allows executives to manage inbound/outbound calls, extract interaction history from various sources and provide personalized support to...
What each product offers, as listed by its team.


Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
Mattermost is recommended for organizations that prioritize data privacy and security, need extensive customization options, or are looking to integrate a collaboration tool into existing systems. It is also suitable for teams in regulated industries requiring on-premises solutions.
Overall verdict
Why this product is good
Recommended for
CloudTalk is recommended for small to medium-sized businesses, contact centers, and enterprises that need a comprehensive virtual phone system. It's especially beneficial for those looking to enhance their customer support capabilities and improve internal communication.
Walkthroughs and reviews on video.
Mattermost - An Open Source, Self Hosted, Slack Chat Alternative
More videos
CloudTalk - video review & short demo
More videos
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using Mattermost and CloudTalk. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


Mattermost is an open-source platform that enables safe collaboration in self-hosted chat programs featuring file sharing, search, and integrations; groups and businesses can use it as an internal chat.
Mattermost uses monolithic architecture, which is tightly coupled and complex to understand. It restricts the scalability of the collaboration tool, which is a limitation for growing businesses. In that case,...
Below is a curated list of the 12 best self-hosted messaging apps like MirrorFly, Mattermost, Zulio, Nextcloud, and Rocket.chat that offer unique collaboration features and lets you take full control of your data.
CloudTalk is an innovative call center software that provides users with various unique tools. For example, its custom queue feature allows support teams to dictate where incoming calls will be distributed. With...
CloudTalk is a contact center management solution that enables businesses to streamline communications with teams and customers using virtual call systems.
In terms of integrations, Cloudtalk is also pretty comparable to Aircall, and like Dialpad, both have open APIs, so if for whatever reason you don’t like Aircall, Cloudtalk could be a good alternative.
Recommendations tracked on public social media and blogs since March 2021.


The amazing thing is that there is almost always an open-source alternative that is 10x better in many ways, in the case of slack https://mattermost.com/ I'm looking forward for AI to make it very easy to deploy your own tools and walk... - Source: Hacker News / about 1 month ago
How does it compare to MatterMost [1]? [1] https://mattermost.com/. - Source: Hacker News / 5 months ago
Slack's value is real, especially for cross-company conversations with clients and vendors. But for internal communication in companies that care about data residency or audit requirements, Mattermost is a credible self-hosted... - Source: dev.to / 6 months ago
Tracking CloudTalk since Mar 2021.
When comparing Mattermost and CloudTalk, you can also consider the following products.

A messaging app for teams who see through the Earth!
Compare Slack to Mattermost or CloudTalk:

Aircall is a call center software of a new generation designed for fast growing companies. Setup instantly and integrates to your CRMs
Compare Aircall to Mattermost or CloudTalk:

Rocket.Chat is a Web Chat Server, developed in JavaScript, using the Meteor fullstack framework.
Compare Rocket.Chat to Mattermost or CloudTalk:

Switch is a cloud-based phone system built for Google Apps users.
Compare Dialpad to Mattermost or CloudTalk:

Step up your game with a modern voice & text chat app. Crystal clear voice, multiple server and channel support, mobile apps, and more.
Compare Discord to Mattermost or CloudTalk:

The Cloud Phone System of choice for modern sales and support teams. We help end clueless conversations by adding context to every call.
Compare JustCall to Mattermost or CloudTalk: