I use Go Hunt, for a few bucks more after perpetual discounts you get a ton more than just a map. If you're using them for out of state apps, it's a no-brainer.
Their mapping data isn't as good, I have found a couple places that are public on OnX and verified with the land manager but show up private on Gohunt.
If you don't care about Gohunt other than for the map, I would probably go OnX.