OpenVZ vs SingularityCE
| OpenVZ | SingularityCE | |
|---|---|---|
| Free plan | No | No |
| Free trial | No | No |
| Paid from | — | — |
| Open source | No | No |
| Platforms | Linux | Linux |
| Free plan | Yes | Yes |
| Windows containers | No | No |
| Runtime interface | other | other |
| Supported host OS | Linux | linux |
| Rootless mode | — | Yes |
| Image building | — | Yes |
| Image format | — | both |
Both are listed in Best Container Engines, Best Container Runtime Software. On Specifiction, SingularityCE scores higher on our published basis.