KaiOS vs Ubuntu Touch
| KaiOS | Ubuntu Touch | |
|---|---|---|
| Free plan | No | No |
| Free trial | No | No |
| Paid from | — | — |
| Open source | No | No |
| Platforms | Linux | Android |
| Device types | Smart feature phones; non-touch mobile phones | Phones, tablets, desktop PCs, Raspberry Pi, Pinebook |
| Support lifecycle | Published active baselines include KaiOS 2.5.3 and 3.1 through June 30, 2027, and 2.6 and 4.0 through June 30, 2029. KaiOS separately describes at least three years of support for versions 2.6.x and 4.x. | Regular OTA updates; no fixed support duration stated |
| App compatibility | HTML5/web apps; packaged apps can use privileged APIs; hosted apps run content from a web server; app updates/distribution through KaiStore | OpenStore native apps; Waydroid Android apps; Libertine desktop Linux apps |
| Deployment models | Installed on OEM/ODM smart feature phones | Install on compatible physical devices; preinstalled devices; virtual development installation |
| Free plan | — | Yes |
| Built-in management | — | OTA system updates; device installation via UBports Installer |
Both are listed in Best Operating Systems. On Samsung Mobile US Press, Ubuntu Touch scores higher on our published basis.