Nagios vs Oh Dear vs OnlineOrNot
| Attribute | |||
|---|---|---|---|
| Category | DevOps & Monitoring | Monitoring & Observability | Monitoring & Observability |
| Pricing | Free tier | Free tier | Free tier |
| Starting price | $1995/month | $15/month | $12/month |
| Free tier | Yes | Yes | Yes |
| Free trial | Yes | Yes | No |
| Deployment | — | — | — |
| API available | Unknown | Unknown | Unknown |
| Platforms | — | — | — |
| Certifications | — | — | — |
| Integrations | — | 3 | 3 |
| Company | Founded 1999 | Founded 2018 | — |
| Feature attributes | |||
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Unknown values show as “Unknown”/“—”. Nothing is inferred — see each tool page for sources.