Team Chat Apps · reliability comparison
Flock vs Mattermost: which is more reliable? (2026)
Flock and Mattermost are effectively tied on reliability (100.0 vs 100.0). Over the last 90 days Flock reported 0 incidents and Mattermost reported 0, with effective uptime of 100% and 100% respectively.
Data updated Nov 1, 2026 · How we score
| Metric | Flock | Mattermost |
|---|---|---|
| Reliability score | 100.0 | 100.0 |
| Rank (team chat apps) | #2 | #3 |
| Uptime (90 days) | 100% | 100% |
| Incidents (90 days) | 0 | 0 |
| Partial / major outages | 0 | 0 |
| Avg time to resolve | — | — |
| Outages we detected | 0 | 0 |
| Transparency score | 100/100 | 100/100 |
Where Flock and Mattermost differ
- Flock's longest incident on record lasted 3h (Jul 9, 2026); Mattermost's lasted 21h 40m (Feb 26, 2026).
90-day uptime
Flock
Mattermost
- No incidents
- Degraded
- Partial outage
- Major outage
- No data
Recent Flock incidents
No incidents reported by Flock in the last 90 days.
Recent Mattermost incidents
No incidents reported by Mattermost in the last 90 days.
Other team chat apps to consider
- Element · #1 · 100% uptime
- Rocket.Chat · #4 · 100% uptime
- Twist · #5 · 100% uptime
- Zulip · #6 · 100% uptime