I’ve been using Gaia GPS for years as my go-to for backpacking and hunting. Also use it when out in my kayaks since I don’t want to deal with a battery and dedicated fishfinder/gps. Allows specified map areas to be downloaded to the device for when you have slow or non-existent cell coverage. I also wanted one that would allow for manual entry of coordinates to mark waypoints. A lot of the ones I had looked at didn’t allow me to easily re-enter direct from a computer my old treestand locations, etc. Can also share maps, waypoints, etc with friends.