DNSai vs Metric Tower
| DNSai | Metric Tower | |
|---|---|---|
| Free plan | No | Yes |
| Free trial | No | Yes |
| Paid from | — | Free |
| Open source | No | No |
| Platforms | Web | api, self-hosted, Web |
| Free plan | Yes | Yes |
| Paid from | 30 /mo | — |
| Resolution checks | Yes | — |
| Record-change alerts | Yes | — |
| Alert channels | webhook | — |
Both are listed in Best DNS Monitoring Software. On Samsung Mobile US Press, Metric Tower scores higher on our published basis.