Flesch-Kincaid Calculator vs Readability Formulas
| Flesch-Kincaid Calculator | Readability Formulas | |
|---|---|---|
| Free plan | Yes | Yes |
| Free trial | No | No |
| Paid from | Free | Free |
| Open source | No | No |
| Platforms | Web | extension, macOS, Web, Windows |
| Free plan | Yes | Yes |
| Sentence analysis | Yes | Yes |
| Clarity recommendations | Yes | Yes |
| Browser extension | — | Yes |
| Language support | — | english |
Both are listed in Best Readability Checkers. On Samsung Mobile US Press, Readability Formulas scores higher on our published basis.