I've been using onX for years, but decided to try BaseMap Pro from BaseMap and see what they offer. I'm happy with BaseMap, as it offers almost identical layers and features as onX. The one feature I could never find a picture of in BaseMap was the private-landowner data and how its displayed, but it displays the same tax addresses like onX. BaseMap does have superior satellite maps, and the one thing that is different on BaseMap is that private-land ownership is a nationwide layer, not a state-by-state layer, and that seems a little odd to me but it works. In all I'm happy with it and at a discount it provides all the value onX does, showing private-land ownership and local, state, and federal public lands and more. The only real downside (which is an issue with onX as well)... Once you start turning on a lot of layers the load time suffers. I wish both products would work on fixing that