| Price from | $4.17/mo | $24.50/mo |
| Free plan | — | Yes |
| Free trial | Yes | — |
| Open source | — | — |
| Web | Yes | Yes |
| API | — | Yes |
| Plans published | 4 | 6 |
| Spec score · Coding Learning Software | 8.2 (#11) | 8.5 (#6) |
| Community | The homepage describes a community where users solve missions and analyze other members’ solutions. | Pro subscribers receive private Discord access for code reviews, help, mentors, and peer discussion. |
| Integrations | CheckiO describes customizable product integrations and cites SendGrid API missions as an example. | Explain can be created from Scrimba, ChatGPT or Codex, Claude Code and other MCP tools, GitHub pull requests, and the Chrome extension. |
