Mattermost: The Private Slack Alternative.
Real-time messaging, file sharing, and voice calls without the surveillance. Keep your company data on your own infrastructure, fully encrypted and under your control.
- ✅ Unlimited Chat History
- ✅ iOS & Android Apps Included
- ✅ Dedicated Calls Port Included
Collaboration Infrastructure
Dedicated Calls Port
Voice and video calls require special UDP port configurations that most hosts block. We pre-configure your Calls Port so you can start a team meeting instantly.
Mobile Ready
Work from anywhere. Your Leapjuice server connects natively to the official Mattermost iOS & Android apps. Push notifications work out of the box.
Data Sovereignty
Stop feeding your internal strategy discussions to Salesforce (Slack) or Microsoft (Teams). Your chat logs live on your Leapjuice NVMe drive, nowhere else.
Unlimited History. Zero Fees.
Free Slack workspaces hide your messages after 90 days. We don't.
Leapjuice Mattermost gives you Unlimited Message History and Search. Go back 5 years and find that one file or conversation. It's your data—why should it disappear?
Team Communication Plans
Choose based on your team size and call volume.
Team Starter
$23/mo when paid annually
Small Agile Teams
- 1 vCPU (C4D)
- 2 GB RAM
- Unlimited Users
- Unlimited Message History
- Mobile App Access
Business Class
$47/mo when paid annually
Scaling Organizations
- 2 vCPU (C4D)
- 4 GB RAM (Double Power)
- Optimized for Video Calls
- Faster Search Indexing
- Priority Support
Free n8n Automation Server