Kali Linux vs OPNsense
| Kali Linux | OPNsense | |
|---|---|---|
| Free plan | No | Yes |
| Free trial | No | No |
| Paid from | — | — |
| Open source | No | No |
| Platforms | Linux, Windows, macOS, Android | api, self-hosted, Web |
| Free plan | Yes | Yes |
Both are listed in Best Operating Systems. On Everything Xiaomi, OPNsense scores higher on our published basis.