CentOS Stream vs KaiOS

CentOS Stream

5.9 #5 in Operating Systems

About CentOS Stream

KaiOS

5.0 #42 in Operating Systems

About KaiOS
CentOS StreamKaiOS
Free planYesNo
Free trialNoNo
Paid fromFree—
Open sourceNoNo
PlatformsLinux, self-hostedLinux
Free planYes—
Device typesServers, workstations, cloud instances, and containersSmart feature phones; non-touch mobile phones
CPU architecturesCentOS Stream 10: AMD/Intel 64-bit (x86_64_v3), ARM 64-bit (ARMv8.0-A), IBM Power (POWER9), IBM Z (z14)—
Support lifecycleCentOS Stream 10 maintained until 2030; roughly five-year lifecycle. CentOS Stream 9 end-of-life: 2027-05-31.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.
Built-in managementDNF repositories and package management—
App compatibilityBaseOS and AppStream repositories; RPM packages; Xwayland compatibility layer for legacy X11 applicationsHTML5/web apps; packaged apps can use privileged APIs; hosted apps run content from a web server; app updates/distribution through KaiStore
Deployment modelsPhysical-device installation media; cloud images; container images; Vagrant boxesInstalled on OEM/ODM smart feature phones

Both are listed in Best Operating Systems. On Inferse, CentOS Stream scores higher on our published basis.