Quad9 vs RethinkDNS
| Quad9 | RethinkDNS | |
|---|---|---|
| Free plan | Yes | No |
| Free trial | No | No |
| Paid from | Free | — |
| Open source | No | No |
| Platforms | Android, iOS, Linux, macOS, Windows | Web, Android |
| Free plan | Yes | Yes |
| Category filtering | No | Yes |
| Custom domain policies | No | Yes |
| Roaming protection | Yes | — |
| Activity reports | Yes | Yes |
Both are listed in Best DNS Filtering Software. On Everything Xiaomi, Quad9 scores higher on our published basis.