Do I need a license to develop applications in MicroEJ Studio?
MicroEJ Studio does not need a license. You can use it freely to evaluate MicroEJ or prototype sand-boxed applications.
Several boards are available in the getting started pages at developer.microej.com  and also in the getting started pages at microej.nxp.com .
N.B.: only our other IDE, the MicroEJ SDK uses licenses (evaluation or production)
Thank you for your prompt response.