| Price from | — | $12/mo |
| Free plan | — | — |
| Free trial | — | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| API | Yes | Yes |
| Plans published | 0 | 3 |
| Spec score · Writing Style Checkers | 7.5 (#22) | 8.5 (#6) |
| Integrations | The official site lists integrations for Atom, Sublime, Gulp, Slack, Ember, Probot, Vim, and Contentful. | Official pages list Dropbox and Slack applications as integrations. |
| Intended users | The site describes checking your own or someone else’s writing, and the README recommends running Alex with tests in a project workflow. | Readable describes its audiences as authors, marketers, educators, lawyers, and others working to improve writing. |
| Purpose | Alex helps find gender favouring, polarising, race related, religion inconsiderate, and other unequal phrasing. | Readable is an online toolkit for analyzing and improving writing readability and quality. |
| Support | The official site welcomes suggestions, feature requests, and issues through GitHub Issues, and provides an email address for contacting the maker. | Readable advertises an extensive knowledge base plus in-app and email support. |
