Contiki-NG vs VxWorks

Contiki-NG

6.1 #5 in IoT Operating Systems

About Contiki-NG

VxWorks

6.6 #3 in IoT Operating Systems

About VxWorks
Contiki-NGVxWorks
Free planNoNo
Free trialNoNo
Paid from——
Open sourceNoNo
PlatformsLinux, macOS, WindowsLinux, Windows
Deployment modeledge—
Supported device OSARM Cortex-M3/M4; TI MSP430; TI CC13xx/CC26xx; Nordic nRF5340/nRF52840; Silicon Labs Gecko; native/Cooja—
Protocol supportIPv6, 6LoWPAN, RPL, CoAP/CoAPs, OMA LwM2M, TSCH/6TiSCH, MQTT, SNMP, IEEE 802.15.4—
Free plan—Yes

Both are listed in Best IoT Operating Systems. On Specifiction, VxWorks scores higher on our published basis.