Kubuntu vs Ubuntu Server
| Kubuntu | Ubuntu Server | |
|---|---|---|
| Free plan | Yes | Yes |
| Free trial | No | Yes |
| Paid from | Free | $2.08/mo |
| Open source | No | No |
| Platforms | Linux | Linux, self-hosted |
| Free plan | Yes | Yes |
| Device types | Desktop PCs, laptops | servers, virtual machines, cloud instances, IoT/edge devices |
| CPU architectures | AMD64 (x86-64) | amd64, arm64, armhf, ppc64el, riscv64, s390x |
| Support lifecycle | Kubuntu 26.04 LTS receives security and maintenance updates through April 2029; LTS releases are published every two years. | LTS: five years standard security maintenance; Ubuntu Pro extends coverage to 10 years, with Legacy add-on extending it to 15 years. |
| Built-in management | APT package manager; Discover software browser | Landscape centralized estate management; Kernel Livepatch; security updates and hardening |
| App compatibility | Applications from Ubuntu archive; Snap packages | Ubuntu package repositories (Main and Universe); cloud images; server ISO installation |
| Deployment models | Physical desktop and laptop installation; live USB installation media | physical server, virtual machine, public/private/hybrid cloud, cloud image, IoT/edge device |
Both are listed in Best Operating Systems. On Samsung Mobile US Press, Ubuntu Server scores higher on our published basis.