Apache NuttX vs RT-Thread
| Apache NuttX | RT-Thread | |
|---|---|---|
| Free plan | No | No |
| Free trial | No | No |
| Paid from | — | — |
| Open source | No | No |
| Platforms | — | — |
| Free plan | Yes | Yes |
| Deployment model | — | edge |
| Over-the-air updates | — | Yes |
| Protocol support | — | Ethernet, Wi-Fi, Bluetooth, NB-IoT, cellular (2G/3G/4G), HTTP, MQTT, LwM2M |
Both are listed in Best IoT Operating Systems. On Freedom251, Apache NuttX scores higher on our published basis.