IoT Operating Systems

Alternatives to Azure Sphere OS

The tools Specifiction weighs against Azure Sphere OS, from its list of iot operating systems, each with its plans, platforms and spec score.

01 Apache NuttX
NuttX suits developers building embedded software across supported processor architectures and hardware boards, including teams that use simulator targets.

Free plan Open source Windows · macOS · Linux · API
9.0 Visit Specs
02 OpenWrt
OpenWrt suits users who want to customize embedded devices such as wireless routers and are familiar with GNU/Linux and basic networking concepts.

Free plan Open source Web · Linux · Android · API
8.7 Visit Specs
03 Apache Mynewt
It is aimed at embedded and higher-level application developers working with constrained devices.

Free plan Windows · macOS · Linux · Self-hosted
8.2 Visit Specs
04 Contiki-NG
It suits developers building low-power IoT devices with limited resources and standard networking protocols.

Free plan Windows · macOS · Linux · Self-hosted
8.1 Visit Specs
05 FreeRTOS
FreeRTOS suits developers building software for microcontrollers and small microprocessors.

Free plan Windows · Linux
7.6 Visit Specs
06 PX5 RTOS
PX5 RTOS is for developers building resource-constrained embedded systems, particularly in safety-critical automotive, industrial, medical, or rail applications.

From $416.67/mo Free trial
7.5 Visit Specs
07 QNX Neutrino RTOS
QNX Neutrino RTOS is for teams building embedded applications that need a real-time operating system and support for listed processor architectures.

Free trial Self-hosted
7.0 Visit Specs
08 Particle Device OS
From $299/mo Free plan Web
6.9 Visit Specs
09 Micrium OS
Windows · macOS · Linux
5.9 Visit Specs
10 VxWorks
Windows · Linux
5.8 Visit Specs
11 PikeOS
It suits organizations planning edge deployments that need one of the listed operating systems and protocols.

Windows · Linux
5.6 Visit Specs
12 RT-Thread

5.1 Visit Specs
13 TencentOS Tiny

5.1 Visit Specs

Azure Sphere OS, head to head