When comparing SecureChat vs Mattermost, the Slant community recommends Mattermost for most people. In the question“What is the best team chat software?” Mattermost is ranked 6th while SecureChat is ranked 22nd. The most important reason people chose Mattermost is:
You don't need to rely on someone else's servers, you can host Mattermost on your own server.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Threads to organize conversations
Supports threads to organise conversations into topics.
Pro Expiring messages
Channels can be configured to have expiring messages that get automatically deleted after a pre-defined time.
Pro Guaranteed delete
Ensures messages are fully deleted and removed from backup.
Pro Servers 100% hosted in Switzerland
Protected by Swiss data privacy - some of the highest data privacy laws in the world.
Pro Encryption
Strong end-to-end encryption of messages and files.
Pro Drag and drop files
Drag and drop documents, photos, videos into the chat.
Pro Integrates with other tools
Built in integrations for Zendesk, Trello, Github, SupportBee, etc.
Pro Can be self-hosted
You don't need to rely on someone else's servers, you can host Mattermost on your own server.
Pro One-line Docker install
With Docker set up, you can install Mattermost with the following command:
docker run --name mattermost-dev -d --publish 8065:80 mattermost/platform
For other cases, installation instructions can be found here.
Pro Similar to Slack
Almost all features of Slack are available in Mattermost.
Pro Free - OpenSource
You can download and use it as free for self-hosted server.
Pro Mobile apps for android and iOS
Pro You can change theme
Pro Desktop app for MacOS, Linux and Windows
Pro Browser notifications
Pro Mark-Down support
Yes, it supports markdown.
Cons
Con Non-free / Propritary Software
The code base isn't free/libre and cannot be self-hosted, therefore there is no proof that encryption or "guaranteed delete", actually work. There is no reason to think this application is secure.
Con No easy End-to-End Encryption setup
Con Features not available out of the box
Difficult to setup the many features it offers. The easy docker installation is for the application only, not it's feature sets. Requires a license for full-set of features.
Con Centralized
Con Poorly made iOS app
Built natively using React it suffers from unresponsiveness, input lag, and sometimes broken services. Coupled with a bad user experience.
Con Poorly made Android app
The Android application is just a badly wrapped web-view which does not perform well and has no form of offline caching whatsoever.
Con Self-Hosted
This doesn't work for every type of company. Mainly great for those concerned with privacy, security, compliance and control of your data/information.