This secure chat application facilitates mission execution for government customers. It requires an invitation to connect to specific servers and adherence to cybersecurity policies.
2.1(21 ratings)
Free
Best apps like Mattermost
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3.2 avg rating
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Updated September 2026
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Top Alternatives to Mattermost
4.4😊(3.7K ratings)
Free
A secure communication platform that integrates messaging, voice, video, and AI for organizations requiring high security and compliance. It offers features like E2E encryption and two-factor authentication to protect sensitive communications.
What We Love
- 🚀 Robust and reliable
- 🔒 Secure self-hosted chat
- 👍 Intuitive and easy to use
- 🙌 Great for team communication
- 💻 Seamless desktop and mobile experience
Room to Improve
- 🐛 Occasional bugs and crashes
- 🔍 Inconsistent search and navigation
- 📢 Unreliable notification system
- 🔒 Tricky privacy management
- 🔄 Frequent login issues
3.3😐(578 ratings)
Free
This app is a legacy version of a communication platform, offering secure messaging and collaboration. It will receive security updates until the end of 2025 but no new features.
What We Love
- 🚀 Fast and efficient
- 🔒 Secure and private
- 👍 User-friendly interface
- 💡 Innovative features
- 🌐 Decentralized and open-source
Room to Improve
- 🐛 Buggy and unstable
- 🔋 High battery consumption
- 📚 Steep learning curve
- 🤔 Confusing user experience
- 🚫 Lack of key features
