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Business Operations

Best IoT Operating Systems in 2026

IoT operating systems provide software for connected devices, with management needs that can extend across a fleet. Compared on certificate management, deployment model, device limit, fleet provisioning, free plan, over-the-air updates, paid-from price, protocol support, and supported device OS, these entries cover useful dimensions for evaluating a deployment.

  1. 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
  2. 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
  3. 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
  4. 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
  5. 05 FreeRTOS

    FreeRTOS suits developers building software for microcontrollers and small microprocessors.

    Free plan Windows · Linux
    7.6 Visit Specs
  6. 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
  7. 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
  8. 08 Particle Device OS
    From $299/mo Free plan Web
    6.9 Visit Specs
  9. 09 Azure Sphere OS

    It suits teams planning supported-device deployments around the MT3620AN solution and needing fleet provisioning, over-the-air updates or certificate management.

    Web
    6.3 Visit Specs
  10. 10 Micrium OS
    Windows · macOS · Linux
    5.9 Visit Specs
  11. 11 VxWorks
    Windows · Linux
    5.8 Visit Specs
  12. 12 PikeOS

    It suits organizations planning edge deployments that need one of the listed operating systems and protocols.

    Windows · Linux
    5.6 Visit Specs
  13. 13 RT-Thread
    5.1 Visit Specs
  14. 14 TencentOS Tiny
    5.1 Visit Specs
How this list is ordered. Specifiction scores each tool on how fully its maker documents it, whether its prices are published, where the research puts it, the platforms it runs on and whether it can be tried for free (how we rank). Makers can also buy a numbered place (how Specifiction is paid for).

Contiki-NG, Apache Mynewt, and Particle Device OS are among the options shown; PX5 RTOS and Micrium OS are also included. Consider which protocols and device operating systems your environment requires, what provisioning and update processes you need, and how device limits, deployment, and cost fit your plans.

Compare Apache NuttX and OpenWrt Get a place on this list

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