I've used Gaia extensively for hunting, hiking, and backcountry skiing/snowmobiling.
Being able to add the Google Satellite Imagery as a custom layer (you can find a TMS link for doing so on reddit) and then download all kinds of layers has made it a game changer, especially on newer phones that have a ton of storage.
Other features that I like:
-Gaia also has GMUs for CO, NM, and several other states I've been to.
-Public and Private boundaries are laid out, with ownership tagged. Every now and then there's an "unknown owner", but if I care enough about that I'll go to that county's assessor site and research.
Some favorite layers:
-Neotreks Land Use. They added this last year sometime and it's the best multi-use topo I've found.
-USFS MVUM
-Public Land
-Private Land
-Google Maps Hybrid Sat (custom import)
-USFS Roads and Trail
-Colorado WIA hunting areas
-Wildfires (cool info)
-Multiple USFS layers/maps (Classic, 2016, Rec Sites, Roadless, Visitor, Timber Harvest)
-Slope Angle Shading - Helps for backcountry skiing but also a quick glance to make sure you're not optimistic when reading the topo lines on the "hill" that will "oh, only take about 10 minutes, it's not too steep"
Might have to check out BaseMap, but for now Gaia is an easy choice for me for the price!