Best IoT Operating Systems in 2026
Updated
In short: Particle Device OS is ranked #1 of 14 as of 4 October 2026, ahead of Micrium OS and VxWorks. The lowest first paid tier on this page is Particle Device OS at $299/mo.
IoT operating systems support software running on connected devices, and their capabilities can shape how devices are provisioned, updated and managed. Compare supported device OS and protocol support with fleet provisioning, certificate management and over-the-air updates. Deployment model and device limit indicate further points to check, alongside free-plan availability and paid-from pricing. Particle Device OS leads the ranking, followed by Micrium OS and VxWorks; Azure Sphere OS and Contiki-NG are also among the early entries. Match the listed platform and management details to the devices and deployment approach you need to support.
14 IoT operating systems ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
- Free plan Web
- Free plan
- Yes
- Paid from
- 299 /mo
- Deployment model
- hybrid
- Supported device OS
- Particle Device OS on Particle devices
- Over-the-air updates
- Yes
RecognisedDocumentedPlatformsFree planFree trial$299/mofirst paid tier About Particle Device OSVisit site - LinuxmacOSWindows
- Free plan
- Yes
- Deployment model
- edge
- Supported device OS
- Micrium OS; runs on Silicon Labs EFR32 and EFM32 devices
RecognisedDocumentedPlatformsFree planFree trial - LinuxWindows
- Free plan
- Yes
RecognisedDocumentedPlatformsFree planFree trial - Web
- Free plan
- No
- Deployment model
- hybrid
- Supported device OS
- Azure Sphere OS (custom Linux-based OS)
- Over-the-air updates
- Yes
- Fleet provisioning
- Yes
RecognisedDocumentedPlatformsFree planFree trial - LinuxmacOSWindows
- Deployment model
- edge
- Supported device OS
- ARM Cortex-M3/M4; TI MSP430; TI CC13xx/CC26xx; Nordic nRF5340/nRF52840; Silicon Labs Gecko; native/Cooja
RecognisedDocumentedPlatformsFree planFree trial - LinuxWindows
- Free plan
- No
- Deployment model
- edge
- Supported device OS
- Linux, Android, Windows, ELinOS, POSIX, ARINC 653, PikeOS Native
- Over-the-air updates
- Yes
RecognisedDocumentedPlatformsFree planFree trial -
- Free plan
- Yes
- Deployment model
- edge
- Over-the-air updates
- Yes
RecognisedDocumentedPlatformsFree planFree trial -
- Free plan
- Yes
- Deployment model
- edge
- Over-the-air updates
- Yes
RecognisedDocumentedPlatformsFree planFree trial - Linux
- Deployment model
- edge
- Supported device OS
- Apache Mynewt
RecognisedDocumentedPlatformsFree planFree trial - Linux
- Deployment model
- hybrid
RecognisedDocumentedPlatformsFree planFree trial -
- Free plan
- Yes
RecognisedDocumentedPlatformsFree planFree trial -
- Free plan
- Yes
RecognisedDocumentedPlatformsFree planFree trial -
- Deployment model
- edge
RecognisedDocumentedPlatformsFree planFree trial -
- Free plan
- No
RecognisedDocumentedPlatformsFree planFree trial
Is your tool on this list?
Numbered spots on this list can be sponsored. They are labelled, and the editorial order and scores never change for payment.
Questions about this list
Which IoT operating system is ranked first on Specifiction?
Particle Device OS is ranked #1 of 14 with a score of 7.1. Micrium OS is second and VxWorks third.
How many of these have a free plan?
1 of the 14 on this page publish a free plan on their own pricing pages.
Which is the cheapest paid option?
On this page, Particle Device OS has the lowest first paid tier we found: $299/mo.
How is this list ranked?
Ranked on what each maker publishes, the fullest spec sheet first: how deeply the product is documented, the platforms it runs on, a free tier or trial to test it, and its standing. Paid placements never change a rank.