bea08394__commercial_licensing_options___FreeRTOS_Open_Source_License
[0] Do I have to document that my product uses FreeRTOS? [OpenRTOS Commercial License] No [FreeRTOS Open Source License] 
Yes a web link to the FreeRTOS.org site is sufficient
FreeRTOS open source licensing, FreeRTOS license description, FreeRTOS license terms and OpenRTOS commercial licensing options.
FreeRTOS Open Source License