Metric Tower vs OpenNMS
| Metric Tower | OpenNMS | |
|---|---|---|
| Free plan | Yes | Yes |
| Free trial | Yes | No |
| Paid from | Free | $500/mo |
| Open source | No | No |
| Platforms | api, self-hosted, Web | api, Linux, self-hosted, Web |
| Free plan | Yes | Yes |
| Alert channels | — | email, sms |
Both are listed in Best DNS Monitoring Software. On Everything Xiaomi, OpenNMS scores higher on our published basis.