The only difference in the two platforms is Hema has a much better national map but Gaia has many more map overlays and Gaia is supported while Hema is not.
So Gaia is the winner for me. I downloaded the nmbdr tracks to my iPad and they magically appeared on Gaia. Don’t have a clue how that happened but it sure beats trying to figure out a route.
nmbdr. Is a motorcycle track across New Mexico but supposedly wide enough for a rig. We’ll soon find out.