I need to choose a real-time operating system (RTOS) for a new IoT device. What are my best options?

Data as of Mar 19, 2026. Sign up free to see the latest daily data.

Total mentions

323

Unique brands

Avg brands/response

11.1

Top domain

promwad.com

Top brand

FreeRTOS

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Prompt visibility

Prompt visibility score combining mention rate and average position - 0-100 scale.

Top brand - Visibility score

FreeRTOS93.8%

Zephyr Project56.3%

Eclipse ThreadX33.3%

Responses

Counts only on free plans

Total responses

Total mentions

323

Total citations

483

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Other prompts with similar intent

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Citation breakdowns

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Total mentions

323

Unique brands

Avg brands/response

11.1

Top domain

promwad.com

Top brand

FreeRTOS

See the full picture

See which brands AI recommends hereGet alerted when this answer changesTasks to improve your ranking

Prompt visibility

Prompt visibility score combining mention rate and average position - 0-100 scale.

Top brand - Visibility score

FreeRTOS93.8%

Zephyr Project56.3%

Eclipse ThreadX33.3%

Responses

Counts only on free plans

Total responses

Total mentions

323

Total citations

483

Related prompts

Other prompts with similar intent

Top brand - Mention rate

FreeRTOS100.0%

Zephyr Project100.0%

Eclipse ThreadX100.0%

Mbed OS62.5%

Apache NuttX50.0%

Top brand - Avg. position

FreeRTOS1.1

Zephyr Project1.9

Eclipse ThreadX3.0

Apache NuttX4.8

Mbed OS5.8

Top cited URLs

promwad.com

4.1%

dojofive.com

4.1%

inspiro.nl

3.4%

somcosoftware.com

2.7%

nabto.com

2.7%