Team Chat Apps · reliability comparison
Ryver vs Zulip: which is more reliable? (2026)
Ryver and Zulip are effectively tied on reliability (99.6 vs 100.0). Over the last 90 days Ryver reported 1 incident and Zulip reported 0, with effective uptime of 100% and 100% respectively.
Data updated Nov 1, 2026 · How we score
| Metric | Ryver | Zulip |
|---|---|---|
| Reliability score | 99.6 | 100.0 |
| Rank (team chat apps) | #7 | #6 |
| Uptime (90 days) | 100% | 100% |
| Incidents (90 days) | 1 | 0 |
| Partial / major outages | 0 | 0 |
| Avg time to resolve | — | — |
| Outages we detected | 0 | 0 |
| Transparency score | 100/100 | 100/100 |
Where Ryver and Zulip differ
- Zulip reported no incidents in the last 90 days, while Ryver reported 1.
- Ryver's longest incident on record lasted 19h 35m (Oct 21, 2026); Zulip's lasted 3h 55m (Mar 26, 2026).
90-day uptime
Ryver
Zulip
- No incidents
- Degraded
- Partial outage
- Major outage
- No data
Recent Ryver incidents
- InformationalOct 21, 2026 · resolved in 19h 35m
File Upload support has been deactivated due to a security vulnerability in PHP.
Affected: Chat Server, API, Signup Site, Ryver.com Website
Recent Zulip incidents
No incidents reported by Zulip in the last 90 days.
Other team chat apps to consider
- Element · #1 · 100% uptime
- Flock · #2 · 100% uptime
- Mattermost · #3 · 100% uptime
- Rocket.Chat · #4 · 100% uptime