Kubuntu vs postmarketOS
| Kubuntu | postmarketOS | |
|---|---|---|
| Free plan | Yes | No |
| Free trial | No | No |
| Paid from | Free | — |
| Open source | No | No |
| Platforms | Linux | Linux |
| Free plan | Yes | Yes |
| Device types | Desktop PCs, laptops | phones, tablets, laptops, Chromebooks, single-board computers, x86_64 EFI systems |
| CPU architectures | AMD64 (x86-64) | aarch64, armv7, x86_64, riscv64 |
| Support lifecycle | Kubuntu 26.04 LTS receives security and maintenance updates through April 2029; LTS releases are published every two years. | No fixed duration stated; stable kernel packages are kept up to date while the release is supported; device support depends on category and maintainers. |
| Built-in management | APT package manager; Discover software browser | Stable and edge release channels; kernel and system package upgrades; automatic kernel upgrades required for community-category devices |
| App compatibility | Applications from Ubuntu archive; Snap packages | Alpine apk packages; Flatpak is primary application distribution for Duranium |
| Deployment models | Physical desktop and laptop installation; live USB installation media | Physical device installation; Duranium also uses standard GPT partitions on compatible laptops |
Both are listed in Best Operating Systems. On Everything Xiaomi, Kubuntu scores higher on our published basis.