| Price from | $2/mo | — |
| Free plan | — | — |
| Free trial | — | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| API | Yes | Yes |
| Plans published | 3 | 2 |
| Spec score · Coding Challenge Platforms | 8.2 (#7) | 7.0 (#26) |
| Purpose | Codewars helps people improve coding skills by practicing community-created programming exercises called kata. | Qualified is a platform for assessing software developers in recruiting, education, and certification contexts. |
| Support | The About page lists [email protected] as a contact address. | Qualified provides documentation, FAQs, and support contact through its listed email address. |