Mattermost vs Wekan: What are the differences?
Mattermost: Open-source, self-hosted, Slack alternative. Mattermost is modern communication from behind your firewall; Wekan: The open-source Trello-like kanban (built with Meteor). Whether you’re maintaining a personal todo list, planning your holidays with some friends, or working in a team on your next revolutionary idea, Kanban boards are an unbeatable tool to keep your things organized. They give you a visual overview of the current state of your project, and make you productive by allowing you to focus on the few items that matter the most.
Mattermost and Wekan are primarily classified as "Group Chat & Notifications" and "Project Management" tools respectively.
"Open source" is the primary reason why developers consider Mattermost over the competitors, whereas "Open Source" was stated as the key factor in picking Wekan.
Mattermost and Wekan are both open source tools. It seems that Mattermost with 14.9K GitHub stars and 3.04K forks on GitHub has more adoption than Wekan with 14.5K GitHub stars and 2.12K GitHub forks.