Rank Math SEO vs Rio SEO
| Rank Math SEO | Rio SEO | |
|---|---|---|
| Free plan | Yes | No |
| Free trial | Yes | No |
| Paid from | — | — |
| Open source | No | No |
| Platforms | self-hosted, Web | Web |
| Free plan | Yes | — |
| Keyword research | Yes | — |
| Rank tracking | Yes | — |
| Site audit | Yes | — |
| Competitor research | Yes | — |
| Tracked keywords | 500 keywords | — |
Both are listed in Best SEO Tools. On Samsung Mobile US Press, Rank Math SEO scores higher on our published basis.