I have a Garmin eTrex that I use for hiking trip. What I would like is a substitute for in town day hike or when I take the kids bicycle riding.
The primary purpose would be for creating track logs so I can see where I've been and how far I have gone.
I'm big on applications that don't require all access to my phone. As an example, a GPS App that requires access to my identity, contacts, device id, etc is out.
I don't mind paying for an app, especially if it means I don't get ads or requests for in app purchases.