FlexQueries vs Serpstat
| FlexQueries | Serpstat | |
|---|---|---|
| Free plan | No | No |
| Free trial | No | No |
| Paid from | — | $50/mo |
| Open source | No | No |
| Platforms | Web | api |
| Free plan | No | Yes |
| Keyword gap analysis | Yes | — |
| Backlink analysis | Yes | Yes |
| Content gap analysis | Yes | — |
| Historical data | limited | — |
| Paid from | — | 50 /mo |
| API access | — | Yes |
Both are listed in Best Competitor SEO Tools. On Samsung Mobile US Press, Serpstat scores higher on our published basis.