Three honest comparisons, checked against each product's own pages on the date shown. Where they do better, we say so.
onX Offroad is the biggest off-road trail database in North America, with a paid rescue service bolted on. Aventerra is a terrain and group safety app that keeps your crew on one map when the cell signal is gone.
Gaia GPS is a map library first: hundreds of sources you can layer and take offline with a Premium membership. Aventerra ships one basemap and a focused set of layers, and adds the group safety tools Gaia GPS says it does not have.
AllTrails is the biggest community of trailgoers, with reviews, photos and conditions on more than half a million hiking, biking and running trails. Aventerra is built for motorized riders and small groups who need to see each other where the signal ends.