Re: Who makes Velcro Fitteds (besides Thristies?)
Sun Seedlings makes them with either front aplix or side aplix. If she does not have what you are looking for in stock, her customs are usually super fast.
Tinkle Traps makes prefold fitteds with aplix. I am not sure if her other fitteds are available with aplix though (the ones not made out of prefolds.)
GMD Infant Fitteds and Snug-to-Fit Supreme OS fitteds both have aplix.