Vortex Sound Research

I have the Reface DX and it's a wonderful instrument, sounds great, my only issues with using it as a live instrument is those tiny keys are a pain, and you have to save your banks on top of the factory ones.

I know the MX49 can do FM synthesis via an external app, but can those sounds be saved onto the actual keyboard itself or would I have to drag along an iPad as well? Thanks in advance if you have some info!