By "Real" I mean something on a par with the Magellen and/or Garmin dedicated devices. I've tried Osmand+, GoogleMaps.... but it seems like every time I go to actually use one, the cache isn't there. What I'm looking for is a GPS app that always has all it's maps, locations resident on the SD card - as part of the install maybe.... and can compute/recompute directions on a par with the Garmin devices. I see several offerings from Garmin and "SmartGPS" form Magellen. Does anybody have/like one of them? PlayStore says that Garmin Navigator is incompatible with both my Samsung Note 5" Phone and my Samsung Note 10.1" tablet. Doesn't sound right because these are such main stream devices. ??