I downloaded AllTrails. Also kind of too fast paid for the Pro version. Looked very promising. Really seemed useful, then and it was about mid October, I had no more data usage available (kind of have a senior plan, which has always worked fine for me). It also seems to require a cell phone coverage which is nice if you walk in a park, which I don't. Also seems to suck batteries.
Not too big a deal right now.
Is there one that?
1. Works all over the US.
2. Can work in airplane mode.
Don't know if the data use is because I don't have it airplane mode or... I hope someone could 'splain this one to me.