Is there any way to convert .stl to .easm for eDrawiings for free

Hello, I'm new to this forum so please let me know if this is answered somewhere else.
I downloaded eDrawings to my phone today which allows you to print a glyph and then view your 3D models as augmented reality objects. since I work in Rhino I'm looking for a way to convert .stl or .obj to eDrawings .easm files. from what I could find all of the programs that do this are pretty costly. their FAQ section says you can use sketch up but I see no option for exporting to .easm. If I can't find a cheap option I suppose I'll need to buy the rapidfire program they recommend but, its 95 dollars. If that's my only option the app I thought was going to cost 2 dollars will cost near 100. Any ideas?