Thanks for the responses. No issues with the Garmin App on my phone--in fact, I really like that app. I am going to get the hunting layer for it, which appears to be a much less expensive but equally functional equivalent of Onx.
My problem is with the maps on the InReach devise itself. The location shows up but no actual map images on the InReach's screen. Not sure if they are supposed to show up or if the device doesn't actually have the ability to display maps on its own screen. I'll give Garmin a call and see what the deal is.