The best and most robust way currently is:

1. Export the design to a cloud storage service like GoogleDrive or Dropbox
2. Download it to your desktop/laptop computer
3. Put it on a thumb drive from your computer.
4. Load the design from the thumbdrive.
    

This clearly does involve several steps that one could imagine should not be needed. You could also,

The fractal system in Touch Embroidery are lsystem fractals. It uses a set of turtle graphic commands. Then, in turn, turns these patterns into sewable items.

The commands are as follows:

Imagine you want to add a good zigzig stitch better than the z-pattern sort of thing in the draw tool. You could make one with much better control it would simply require defining a ribbon program. You ask the community and are told that an easy way to do that would be: o2,3,90,20ns-1kB4,10B4,5f0

Hoops, in embroidery, are used to hold fabric in place during the embroidery process. These hoops come in different sizes and depend on the machine and differ greatly. So it is essential to know whether you can draw the desired image in the given space. Which is why you would need hoops for any software to make embroidery. Keeping in mind that the presser foot of the machine may still reduce the effective range within that hoop. Machines will almost always allow you to measure the size of the design and it is essential that you do this.
 

The Ribbon Tool

The Ribbon Tool runs various short programs resulting in sequences of lines that generally look like ribbons, and are acceptable for embroidery.