CodeSandbox vs Flems
| CodeSandbox | Flems | |
|---|---|---|
| Free plan | No | No |
| Free trial | No | No |
| Paid from | — | — |
| Open source | No | No |
| Platforms | Web, iOS | — |
| Free plan | Yes | — |
| Deployment options | isolated sandboxes and entire VMs | static |
| Full-stack runtime | — | No |
| Sharing controls | — | link_access |
Both are listed in Best Coding Playgrounds. On Everything Xiaomi, CodeSandbox scores higher on our published basis.