Project Management Software · reliability comparison
Notion vs Smartsheet: which is more reliable? (2026)
Smartsheet is more reliable than Notion, scoring 59.5 vs 43.5 out of 100. Over the last 90 days Notion reported 31 incidents and Smartsheet reported 8, with effective uptime of 98.34% and 99.00% respectively. Smartsheet resolves incidents faster on average (4h 50m).
Data updated Nov 2, 2026 · How we score
| Metric | Notion | Smartsheet |
|---|---|---|
| Reliability score | 43.5 | 59.5 |
| Rank (project management tools) | #11 | #9 |
| Uptime (90 days) | 98.34% | 99.00% |
| Incidents (90 days) | 31 | 8 |
| Partial / major outages | 7 | 6 |
| Avg time to resolve | 8h 22m | 4h 50m |
| Outages we detected | 0 | 0 |
| Transparency score | 100/100 | 100/100 |
Where Notion and Smartsheet differ
- Notion reported 3.9× as many incidents as Smartsheet over the last 90 days (31 vs 8).
- Notion had 7 partial or major outages, compared with 6 for Smartsheet.
- Smartsheet fixes problems faster: 4h 50m on average, against 8h 22m for Notion.
- Notion's longest outage on record lasted 19h 57m (Oct 20, 2026); Smartsheet's lasted 1d 6h (Mar 3, 2026).
90-day uptime
Notion
Smartsheet
- No incidents
- Degraded
- Partial outage
- Major outage
- No data
Recent Notion incidents
- Major outageOct 23, 2026 · resolved in 3h 6m
Users unable to access Notionofficial update ↗
Affected: Login and user accounts, Notion Apps, View and edit content
- InformationalOct 23, 2026 · resolved in 3d 18h
- Partial outageOct 22, 2026 · resolved in 1h 19m
Notion MCP query_data_source tool is temporarily unavailable in Claude clients
Affected: Notion MCP
- InformationalOct 20, 2026 · resolved in 5d 23h
- Partial outageOct 20, 2026 · resolved in 19h 57m
Unable to install connections created by other workspace membersofficial update ↗
Affected: Data & Integrations
- Degraded performanceOct 18, 2026 · resolved in 3h 57m
Some Notion Agent requests may stop before completion
Affected: Custom Agents
Recent Smartsheet incidents
- Degraded performanceOct 1, 2026 · resolved in 5h 23m
Both automated and manual approval workflows are currently failing to execute
Affected: In App Workflows
- Partial outageSep 21, 2026 · resolved in 5h 22m
Investigating blank page or error on Smartsheet Loginofficial update ↗
Affected: Smartsheet Login
- Partial outageSep 16, 2026 · resolved in 10h 26m
Salesforce connector is experiencing intermittent issuesofficial update ↗
Affected: Salesforce Connector, Customer Support Portal
- Partial outageSep 11, 2026 · resolved in 3h 9m
Smartsheet and Smartsheet Login Unavailable for Smartsheet USofficial update ↗
Affected: Smartsheet Login, Single Sign On ( Company Credentials ), Sheets, Forms, Reports, Dashboards
- Major outageAug 27, 2026 · resolved in 2h 20m
Unexpected HTTP response code affecting login, sheet access, Control Center, Dynamic View and other premium appsofficial update ↗
Affected: Calendar, Smartsheet Login, Control Center, Sheets, Dynamic View, Reports +2 more
- Major outageAug 26, 2026 · resolved in 4h 55m
Sheets in Smartsheet US are failing to loadofficial update ↗
Affected: Resource Management, Control Center, AI Tools, Sheets, Dynamic View, Reports +2 more
Other project management tools to consider
- Teamwork.com · #1 · 100% uptime
- Hive · #2 · 99.96% uptime
- Linear · #3 · 99.92% uptime
- Basecamp · #4 · 99.95% uptime
See the full most reliable project management software ranking →