I prefer CalTopo to Gaia. It has most the same features but has better trip planing. You can run some basic GIS analysis (without having to use ArcMap) and get sun, shade, sunrise, sunset visibility analysis - even some pretty good weather analysis for specific locations. It does allow tracking as well but I do think Gaia does better tracking. However, for pre-trip planning caltrop does terrain analysis. I have used it quite a bit to pre plan a trip to target certain types of desired or undesired weather, or make sure a already planned trip is going to be good. It's pretty powerful I think... And you can bring out paper and waterproof maps through another company they partner with. There is also an available app on your phone/tablet to download your maps and record tracks or pictures. Data can be exported if you so desired to track everything through Esri.
I also use a Garmin. but that is specifically for communications and SOS - not so much any of their hiking maps or data.
Here are a few examples
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