Push Notification Services · reliability comparison
Airship vs Knock: which is more reliable? (2026)
Airship is more reliable than Knock, scoring 79.8 vs 60.8 out of 100. Over the last 90 days Airship reported 3 incidents and Knock reported 4, with effective uptime of 99.81% and 99.18% respectively. Knock resolves incidents faster on average (8h 49m).
Data updated Nov 1, 2026 · How we score
| Metric | Airship | Knock |
|---|---|---|
| Reliability score | 79.8 | 60.8 |
| Rank (push notification services) | #6 | #9 |
| Uptime (90 days) | 99.81% | 99.18% |
| Incidents (90 days) | 3 | 4 |
| Partial / major outages | 0 | 4 |
| Avg time to resolve | 8h 54m | 8h 49m |
| Outages we detected | 0 | 0 |
| Transparency score | 100/100 | 100/100 |
Where Airship and Knock differ
- Knock reported 33% more incidents than Airship over the last 90 days (4 vs 3).
- Knock had 4 partial or major outages, compared with 0 for Airship.
- Airship's longest incident on record lasted 3d (Apr 17, 2026); Knock's lasted 1d 6h (Oct 1, 2026).
90-day uptime
Airship
Knock
- No incidents
- Degraded
- Partial outage
- Major outage
- No data
Recent Airship incidents
- Degraded performanceOct 7, 2026 · resolved in 2h 23m
- MaintenanceSep 30, 2026 · resolved in 30m
- Degraded performanceSep 10, 2026 · resolved in 2h 31m
- MaintenanceAug 28, 2026 · resolved in 1h
- Degraded performanceAug 4, 2026 · resolved in 21h 49m
Recent Knock incidents
- Partial outageOct 29, 2026 · resolved in 1h 34m
Affected: In-app feeds and guides
- Partial outageOct 1, 2026 · resolved in 1d 6h
Warehouse message synchronization delayed
Affected: Data warehouse synchronization
- Partial outageSep 21, 2026 · resolved in 1h 3m
Knock dashboard login magic links are unavailable
Affected: Dashboard
- Partial outageAug 31, 2026 · resolved in 1h 45m
Workflow processing and message delivery errors
Affected: Notification delivery, Link and open tracking
- MaintenanceJul 20, 2026 · ongoing
Queueing infrastructure maintenance
Affected: Notification delivery, Webhook delivery
Other push notification services to consider
- Novu · #1 · 100% uptime
- Courier · #2 · 99.99% uptime
- Expo Push Notifications · #3 · 99.93% uptime
- Firebase Cloud Messaging · #4 · 99.91% uptime
See the full most reliable push notification services ranking →