| Price from | $4.17/mo | — |
| Free plan | — | — |
| Free trial | Yes | — |
| Open source | — | — |
| Web | Yes | Yes |
| Linux | — | Yes |
| Plans published | 4 | 0 |
| Spec score · Coding Challenge Platforms | 8.1 (#9) | 7.1 (#25) |
| Product | CheckiO offers game-based coding challenges for beginners and advanced programmers using Python and TypeScript. | Kattis is an online service provided as software as a service. |
| Support | The Awesome account page directs users needing help to phone, email, or the page’s chat widget. | Kattis’s support site offers a knowledge base and a form for submitting support tickets. |
