I'll enjoy hearing about your successes. I have a Brother Luminaire but have not used any apps with it. My brain is not wrapping around much that is computer oriented now.
I use something called: Design Database Transfer. I use it for my Brother and Babylock machines. My dealer who I purchased my machines from told me about it - it works great. Hugs, Laura
This app has just arrived in the UK and will enable design work to be done on a mobile and sent to a embroidery machine. I am presuming it's been available in the States for a while?